binarytree: fixed possible return of None on creating new nodes
cgol: init
cgol: added init-gen prototype
cgol: revamped the whole structure from structs (lol) to pointers
modified cgol(_test) to comply with clang's -Weverything
Merge branch 'cgol'
cgol now generates a screen of 0s and 1s (for screens up to 4x4...)