* restructuring libCLI by creating new class Game which will ease separation of user interface from game engine.

* mainmenu:
** starting new game removes current_dir and makes a new one and gives it a main.ini from meta.xml of chosen module. PC is hardcoded as PC_AA0001 as long as there is no function to choose from a pool of PC.
** returning from scene to mainmenu and resuming game from there works
** saving game data (current_dir) zipped in savegame_dir works with hardcoded name "test". Next ui for save process with defining savegame_names is to be done.