A biiiiig commit, in order to let people view the code and help me fix the remaining issues (a lot)
-the State machine is finalized for the alpha
-the ECS is in WIP : entities, world and components are more or less finished but systems and messaging is not yet done.
-currently i'm working on the policies for the systems and i'm facing some linking bugs that will be corrected in the next commit (i hope so ...)
-lot more to say but the major things are above.