Added some percussion effects in laberynth.ogg
Changed fire sound
Fire sound looks like an ogg file, but was a wav file
Changed bullet sound
Move interactions to class
Change name to class name file
Fix import bug interactions
Refactor function show_menu into class
Refactor model to move responsibility to Character
Merge branch 'dev'

* dev:
  Refactor model to move responsibility to Character
  Refactor function show_menu into class
  Fix import bug interactions
  Change name to class name file
  Move interactions to class
  Added TODO classes in AI module
  First draft of AI module structure
  Add save menu button
  Implemented load method
  Add save method
  Added load button to main menu
  Start sva module

Move to new class design
Add commentary and clean up
Create menu that can be accessed from game and where the user can save game state
Add information on screen as to how to access menu
Implemented zone detection in Level