Various scripts for different functions

Nicole Portas 813451b4c6 improved mesh to step script há 3 semanas atrás
exif_change_date.py d02326aa9e improvements há 2 meses atrás
mesh_to_step.py 813451b4c6 improved mesh to step script há 3 semanas atrás
repack_slicer.sh f1dd315015 adding useful scripts há 2 meses atrás