Creating makefile.
Adding gitignore
Adding main.c
Modifying a make target to include a new lib-ish source.
Testing some functions in cellular_automata.c
Creating a lib-ish file for functions used by the cellular automata. Adding its headers too.
Deleting old file.
Changing the output dirs of objects and executables.
Fixing count_neighbors to make it count in all 8 directions!