Modify configure.py to get embedded cd++ route by itself

[thepalbi]

We can just remove this step from the setup command and have the config.py as a file in the repo. The file would be something like:

import os

CDPP_BIN_PATH = os.getcwd() + '/cdpp/src/bin'

This may lead to having the config variables duplicated (once for bash and also for python) so we could make the whole setup script in python.

Originally posted by @juanlanuzag in #16

[juanlanuzag]

Solved in #PR22