added wall_00.obj for testing.
Improved io code.
Renamed io to event_manager
Game set for standard map 2D.
Added player name lable.
Better handeling of NULL UI-title.text
Improved nadeling of NULL pointer for new game menu.
Removed redundant funcftion: void update_menu_game_new(int UID)
Added ability to enter player name on the new game menu.