Multi-protocol

Lots of chagnes to add multi protocol flexibility, not really
completed yet, still have to rework text messages opcodes and other stuff,
so this still a working in progress feature

* Rework dat reader, the dat reader can now
* dinamically detect dat version
* Split game into gamelib and game_interface
* Lots of other minor changes

modules/client/client.otmod

@@ -16,7 +16,6 @@ Module
     - client_terminal
     - client_modulemanager
     - client_entergame
-    - game
 
   @onLoad: |
     dofile 'client'