Added skeleton files and build system for the new implementation.
 On branch master
 Changes to be committed:
	new file:   CMakeLists.txt
	new file:   src/ai.c
	new file:   src/ai.h
	new file:   src/bb.c
	new file:   src/bb.h
	new file:   src/common.c
	new file:   src/common.h
	new file:   src/gb.c
	new file:   src/gb.h
	new file:   src/gt.c
	new file:   src/gt.h
	new file:   src/main.c
	new file:   src/player.c
	new file:   src/player.h