god_hands_solver: commit first version of the project

This version of the project is entirely functionnal. Nevertheless, we
should make a small interface showing the values as a circle because the
id's on standard output do not seem very clear.
god_hands_solver: improve the interface a bit
Clean the code and avoid fix some crashes
Rewrite the Makefile to make it more reusable
Add the GNU GPLv2 license to the project