[xInterface][AOMD] add func to xMeshToolAOMD and xAOMDEntityUtil+misc
* Add a getPoint function to simplify xPoint creation from mVertex (no need of vector like getPoints which is more general). * make alive commented (in xMesh) printMesh and printEntity functions. They will certainly move to AOMD interface one day. But for now please let them stay active has I use then for debugging in my application. No time to do a test case on the subject. * To avoid warning on unused variable clean creation of object returned by many function that are not used afterward.