First version of python example package ready for audit.

Here we created a samplepackage based on recommendations from https://github.com/kennethreitz/samplemod/tree/master/

The proposed structure captures all package code in the samplepackage subfolder. Additionally, ipython notebook tutorials lie in the tutorials subfolder. A doc folder was created to comply with MITK documentation guidelines.
In the future, this might be switched from a doxygen documentation to a more
python compatible implementation (like sphinx).

README, Makefile, setup.py and other important files are located in the root directory.

Merge branch 'T19777-create_python_example_package' into T19777-python_example_package