[skip-ci] Various typo fixes

Found via codespell  v1.17.0.dev0  
```
codespell -q 3 -L aci,ake,aline,alle,alledges,alocation,als,ang,anid,ba,beginn,behaviour,bloaded,byteorder,calculater,cancelled,cancelling,cas,cascade,centimetre,childs,colour,colours,commen,connexion,currenty,dof,doubleclick,dum,eiter,elemente,ende,feld,finde,findf,freez,hist,iff,indicies,initialisation,initialise,initialised,initialises,initialisiert,ist,kilometre,lod,mantatory,methode,metres,millimetre,modell,nd,noe,normale,normaly,nto,numer,oder,orgin,orginx,orginy,ot,pard,pres,programm,que,recurrance,rougly,seperator,serie,sinc,strack,substraction,te,thist,thru,tread,uint,unter,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/Mod/PartDesign/Gui/ViewProviderDatum.h

@@ -94,7 +94,7 @@ public:
      * Computes appropriate bounding box for the given list of objects to be passed to setExtents ()
      * @param bboxAction  a coin action for traverse the given objects views.
      * @param objs        the list of objects to traverse, due to we traverse the scene graph, the geo children
-     *                    will likely be traveresed too.
+     *                    will likely be traversed too.
      */
     static SbBox3f getRelevantBoundBox (
             SoGetBoundingBoxAction &bboxAction,