Fix typos and whitespace

Found via `codespell -q 3 -L aci,ake,aline,alle,alledges,alocation,als,ang,anid,anormal,apoints,ba,beginn,behaviour,bloaded,bottome,byteorder,calculater,cancelled,cancelling,cas,cascade,centimetre,childrens,childs,colour,colours,commen,connexion,currenty,dof,doubleclick,dum,eiter,elemente,ende,feld,finde,findf,freez,hist,iff,indicies,initialisation,initialise,initialised,initialises,initialisiert,inout,ist,itsel,kilometre,lod,mantatory,methode,metres,millimetre,modell,nd,noe,normale,normaly,nto,numer,oce,oder,ontop,orgin,orginx,orginy,ot,pard,parm,parms,pres,programm,que,rady,recurrance,ro,rougly,seperator,serie,sinc,siz,strack,substraction,te,technic,thist,thru,tread,uint,unter,uptodate,vertexes,wallthickness,whitespaces -S ./.git,*.po,*.ts,./ChangeLog.txt,./src/3rdParty,./src/Mod/Assembly/App/opendcm,./src/CXX,./src/zipios++,./src/Base/swig*,./src/Mod/Robot/App/kdl_cp,./src/Mod/Import/App/SCL,./src/WindowsInstaller,./src/Doc/FreeCAD.uml,./src/Base/StackWalker.cpp,./build/doc/SourceDocu`

src/Mod/TechDraw/App/DrawProjGroup.cpp

@@ -70,7 +70,7 @@ DrawProjGroup::DrawProjGroup()
     Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter().GetGroup("BaseApp")->
                                                                GetGroup("Preferences")->GetGroup("Mod/TechDraw/General");
     bool autoDist = hGrp->GetBool("AutoDist",true);
-    
+
     ADD_PROPERTY_TYPE(Source, (nullptr), group, App::Prop_None, "Shape to view");
     Source.setScope(App::LinkScope::Global);
     Source.setAllowExternal(true);
@@ -268,7 +268,7 @@ bool DrawProjGroup::checkFit() const
 {
 //    Base::Console().Message("DPG::checkFit() - %s\n", getNameInDocument());
     if (waitingForChildren()) {
-        //assume everything fits since we don't know what size the chilren are
+        //assume everything fits since we don't know what size the children are
         return true;
     }
     auto page = findParentPage();
@@ -348,7 +348,7 @@ void DrawProjGroup::getViewArea(DrawProjGroupItem *viewPtrs[10],
     // Get the child view bounding boxes
     Base::BoundBox3d bboxes[10];
     makeViewBbs(viewPtrs, bboxes, scaled);
-    
+
     //TODO: note that TLF/TRF/BLF,BRF extend a bit farther than a strict row/col arrangement would suggest.
     //get widest view in each row/column
     double col0w = std::max(std::max(bboxes[0].LengthX(), bboxes[3].LengthX()), bboxes[7].LengthX()),
@@ -514,7 +514,7 @@ int DrawProjGroup::removeProjection(const char *viewProjType)
     }
 
     return -1;
-} 
+}
 
 //removes all DPGI - used when deleting DPG
 int DrawProjGroup::purgeProjections()
@@ -576,7 +576,7 @@ std::pair<Base::Vector3d,Base::Vector3d> DrawProjGroup::getDirsFromFront(std::st
     gp_Ax2 newCS;
     gp_Dir gNewDir;
     gp_Dir gNewXDir;
-    
+
     double angle = M_PI / 2.0;                        //90*
 
     if (viewType == "Right") {

src/Mod/TechDraw/App/Geometry.cpp

@@ -587,7 +587,7 @@ void BaseGeom::intersectionLL(TechDraw::BaseGeomPtr geom1,
     // Taken from: <http://de.wikipedia.org/wiki/Schnittpunkt>
     TechDraw::GenericPtr gen1 = std::static_pointer_cast<TechDraw::Generic>(geom1);
     TechDraw::GenericPtr gen2 = std::static_pointer_cast<TechDraw::Generic>(geom2);
-    // we calculate vectors to start points and direction verctors
+    // we calculate vectors to start points and direction vectors
     Base::Vector3d startPnt1 = gen1->points.at(0);
     Base::Vector3d endPnt1 = gen1->points.at(1);
     Base::Vector3d startPnt2 = gen2->points.at(0);

src/Mod/TechDraw/Gui/DlgPrefsTechDrawAnnotationImp.cpp

@@ -48,7 +48,7 @@ DlgPrefsTechDrawAnnotationImp::DlgPrefsTechDrawAnnotationImp( QWidget* parent )
     ui->setupUi(this);
     ui->pdsbBalloonKink->setUnit(Base::Unit::Length);
     ui->pdsbBalloonKink->setMinimum(0);
-    
+
     // connect the LineGroup the update the tooltip if index changed
     connect(ui->pcbLineGroup, SIGNAL(currentIndexChanged(int)),
         this, SLOT(onLineGroupChanged(int)));
@@ -98,7 +98,7 @@ void DlgPrefsTechDrawAnnotationImp::loadSettings()
     for (auto it = lgNames.begin(); it < lgNames.end(); ++it) {
         ui->pcbLineGroup->addItem(tr((*it).c_str()));
     }
- 
+
     ui->cbAutoHoriz->onRestore();
     ui->cbPrintCenterMarks->onRestore();
     ui->cbPyramidOrtho->onRestore();
@@ -147,7 +147,7 @@ void DlgPrefsTechDrawAnnotationImp::onLineGroupChanged(int index)
         ui->pcbLineGroup->setToolTip(QObject::tr("Please select a Line Group"));
         return;
     }
-    // get the definition the the selected LineGroup (includes the name)
+    // get the definition of the selected LineGroup (includes the name)
     std::string lgRecord = LineGroup::getRecordFromFile(Preferences::lineGroupFile(), index);
     std::stringstream ss(lgRecord);
     std::vector<std::string> lgNames;

src/Mod/TechDraw/Templates/zh_CN/landscape/A0_Landscape_CN_CLIP.svg

@@ -275,7 +275,7 @@ e">
         <polygon points="598,828 606,828 602,834" />
 	</g>
 
-	<g id="bunding hole">
+	<g id="binding hole">
         <g stroke="black" stroke-width="0.5" fill="#BBBBBB" stroke="#666666" >
         <circle cx="10" cy="571.5" r="3" />
         <circle cx="10" cy="609.5" r="3" />

src/Mod/TechDraw/Templates/zh_CN/landscape/A1_Landscape_CN_CLIP.svg

@@ -253,7 +253,7 @@ e">
         <polygon points="423.99998,581 432.49998,581 427.99998,587" />
 	</g>
 
-        <g id="bunding hole">
+        <g id="binding hole">
         <g stroke="black" stroke-width="0.5" fill="#BBBBBB" stroke="#666666" >
         <circle cx="10" cy="324.5" r="3" />
         <circle cx="10" cy="362.5" r="3" />

src/Mod/TechDraw/Templates/zh_CN/landscape/A2_Landscape_CN_CLIP.svg

@@ -233,7 +233,7 @@ nter;fill:#000000;"><tspan></tspan></text>
 		<path d="m 354.5,410 v 5" />
 		</g>
 
-	        <g id="bunding hole">
+	        <g id="binding hole">
         	<g stroke="black" stroke-width="0.5" fill="#BBBBBB" stroke="#666666" >
         	<circle cx="10" cy="150.5" r="3" />
         	<circle cx="10" cy="188.5" r="3" />

src/Mod/TechDraw/Templates/zh_CN/landscape/A3_Landscape_CN_CLIP.svg

@@ -183,7 +183,7 @@
 	<!-- project mark end -->
 	</g>
 
-        <g id="bunding hole">
+        <g id="binding hole">
         <g stroke="black" stroke-width="0.5" fill="#BBBBBB" stroke="#666666" >
         <circle cx="10" cy="27.5" r="3" />
         <circle cx="10" cy="65.5" r="3" />

src/Mod/TechDraw/Templates/zh_CN/landscape/A4_Landscape_CN_CLIP.svg

@@ -166,7 +166,7 @@
 	</g>
 
 	<!--
-	<g id="bunding hole">
+	<g id="binding hole">
 	<g stroke="black" stroke-width="0.5" fill="#BBBBBB" stroke="#888888" >
     	<circle cx="12.5" cy="25" r="3" />
     	<circle cx="12.5" cy="105" r="3" />

src/Mod/TechDraw/Templates/zh_CN/portrait/A3_Portrait_CN_CLIP.svg

@@ -188,7 +188,7 @@
         <!-- project mark end -->
         </g>
 
-	<g id="bunding hole">
+	<g id="binding hole">
         <g stroke="black" stroke-width="0.5" fill="#BBBBBB" stroke="#666666" >
         <circle cx="10" cy="150.5" r="3" />
         <circle cx="10" cy="188.5" r="3" />

src/Mod/TechDraw/Templates/zh_CN/portrait/A4_Portrait_CN_CLIP.svg

@@ -167,7 +167,7 @@
         <!-- project mark end -->
         </g>
 	
-        <g id="bunding hole">
+        <g id="binding hole">
         <g stroke="black" stroke-width="0.5" fill="#BBBBBB" stroke="#666666" >
         <circle cx="10" cy="27.5" r="3" />
         <circle cx="10" cy="65.5" r="3" />