moved src files to new src folder

It is not common for a professional python project to put all it's source files
in it's root folder. Thus a subfolder `src` was created.
Another subfolder, called `monk_tf`, was created underneath that Python can
recognize our code as a module. This makes sense if we ever decide that this
project needs to be seperated into more submodules, thus it's not a bad idea.
It will also help with adding distutils/pypi support for this project.

Signed-off-by: Erik Bernoth <bernoth@dresearch-fe.de>
pypi support added

The setup.py is the standard file for handling packaging and distribution in
the python community. We decided to add this support to provide better
accessibility for a wider range of audience.

Signed-off-by: Erik Bernoth <bernoth@dresearch-fe.de>
Merge pull request #18 from erikb85/f-add-distutils-v3

Adding distutils Support