First attempt to generate the configurations of the marching cubes
algorithm, following naively the definition — using the 15 base cases
and generating all rotations and symmetries. This implementation does
not try to be parcimonious, it bruteforces the configurations, since the
search space is quite small anyway.
The plan is to implement a python generator that outputs a valid .cpp
file containing the pre-computed (at compile time) array for
configurations.