Fix typos in TD and FEM source comments/documentation [skip ci]

src/Mod/TechDraw/App/DrawComplexSection.cpp

@@ -413,7 +413,7 @@ TopoDS_Shape DrawComplexSection::makeAlignedPieces(const TopoDS_Shape &rawShape,
         TopoDS_Shape pieceRotated = mkTransRotate.Shape();
 
         //align a copy of the piece with OXYZ so we can use bounding box to get
-        //width, depth, height of the piece. We copy the piece so the tranformation
+        //width, depth, height of the piece. We copy the piece so the transformation
         //does not affect the original.
         BRepBuilderAPI_Copy BuilderPieceCopy(pieceRotated);
         TopoDS_Shape copyPieceRotatedShape = BuilderPieceCopy.Shape();

src/Mod/TechDraw/App/DrawViewPart.cpp

@@ -1006,7 +1006,7 @@ bool DrawViewPart::hasGeometry(void) const
     return false;
 }
 
-//convert a vector in local XY coords into a coordinate sytem in global
+//convert a vector in local XY coords into a coordinate system in global
 //coordinates aligned to the vector.
 //Note that this CS may not have the ideal XDirection for the derived view
 //(likely a DrawViewSection) and the user may need to adjust the XDirection

src/Mod/TechDraw/Gui/QGIViewPart.cpp

@@ -887,7 +887,7 @@ void QGIViewPart::drawComplexSectionLine(TechDraw::DrawViewSection* viewSection,
     wirePath.connectPath(firstSeg);
     int edgeCount = edges.size();
     //NOTE: if the edges are not in nose to tail order, Qt will insert extra segments
-    //that will overlap the segments we add. for interupted line styles, this
+    //that will overlap the segments we add. for interrupted line styles, this
     //will make the line look continuous.  This is prevented in
     //DrawComplexSection::makeSectionLineGeometry by calling makeNoseToTailWire
     for (int i = 1; i < edgeCount; i++) {

src/Mod/TechDraw/Gui/TaskComplexSection.cpp

@@ -170,7 +170,7 @@ void TaskComplexSection::setUiPrimary()
         m_saveNormal = dirs.first;
         m_localUnit = dirs.first;
         m_saveXDir = dirs.second;
-        m_viewDirectionWidget->setValue(m_saveNormal * -1.0);   //this will propogate to m_compass
+        m_viewDirectionWidget->setValue(m_saveNormal * -1.0);   //this will propagate to m_compass
     }
 
     //don't allow updates until a direction is picked