Add python project creation

Using the arugement --language=<LANGUAGE> or -l <LANGUAGE> and
specifying 'python' will create the following directory structure
and initialise a git repository.

 will create the following directory structure
and initialise a git repository.

.
|-- main.py
`-- requirements.txt

This python project is a basic 'Hello World!' program and uses
docopts. Running it will yeild:

$ python main.py
Hello World!

$ python main.py
Usage:
  example.py [-h]

Options:
  -h --help