signal-slot for openFile,
resetView on openFile,
cleanup when open a new file,
triangulate quad poly now correctly, more not working, bug from previous version,
next:
fix 5,6,.. triangulation,
triClothMan, IC Helmet, still buggy,
problems:
it is not correctly displayed (vertice and what happend to the texture?)
todo:
improve the import, remove unused garbage,
add move and zoom function