add packaging files for python hypertable client

[ediskandarov]

I adopt existing hypertable python client sources for python packaging.

After merge please register hypertable at python package index(https://pypi.python.org/pypi) and upload hypertable python package.

cd src/py/ThriftClient
# Create python source distribution and upload it to python package index
python setup.py sdist upload

This should be done on every release of hypertable(if there are any change in python package).

After that there will be no necessary to install hypertable distribution instead install python package.

As simple as:

pip install hypertable