Update snapcore first to augcom

[PillouMatou]

Update the import in order to import .spb and .sps files Fix exportation Add documentation in my code Add TODO at the great place for incrementation in progress bar for loading menu

tested on file :

• Carnet Ornella Bêta Test 23.sps
• Chanson Vive le vent.spb
• Minecraft.spb
• Voxi num appui 24 pictos.sps
• Voxi num appui 48 pictos.sps
• Voxi num appui 80 pictos.sps
• Voxi CO 24 pictos.sps
• Voxi CO 48 pictos.sps
• Voxi CO 80 pictos.sps
• Voxi classeur 24 pictos.sps
• Voxi classeur 48 pictos.sps
• Voxi classeur 80 pictos.sps