Added support files for beebs module

    * python/README.rst: Added README
    * python/setup.py: Setup file for beebs python module
    * python/src/beebs/__init__.py: Include the beebs
    * python/src/beebs/beebs.py: Moved
    * python/src/beebs/compiler.py: Moved
Added support for building beens natively

    * python/src/beebs/beebs.py: Added support for building beens
        natively