Adding ZombieBody classes and first tests. Seems to be working fine, all values are hardcoded but it should be fine for now.
Adding frontend main classes and a button to be used with 4 states and callbacks handling
Adding resources_handler module, not tested yet nor compiled
adding some documents
Adding the game_states interface and the headers of all the states.
Adding OSUtils (fileExists() method).
Now resources_handler module is compiling.
All modules are compiling but aren't tested yet