Refactor of the mesh creation process
Refactor of the mesh creation process

Removed a couple of dead function and vars
Changed a bit the  semantic of buildMeshGeometry

cnr-isti-vclab/meshlabjs,cnr-isti-vclab/meshlabjs,cignoni/meshlabjs,cignoni/meshlabjs,cnr-isti-vclab/meshlabjs,cignoni/meshlabjs,cnr-isti-vclab/meshlabjs,cignoni/meshlabjs,cignoni/meshlabjs,cnr-isti-vclab/meshlabjs