MSNoise is a Python Package!

Changes the structure of the whole set, introduces a setup.py file, and a master "msnoise" script to be installed.
TravisCI will probably fail on the tests.py

REMARK:
Still a lot of work to do, so please don't use this version! (never use :master !), but rather use
latest releases: https://github.com/ROBelgium/MSNoise/releases/latest