[python] Missing __version__ attributes to easily check wrapper version.

[cpoisson]

What's missing

There is no convenience function to retrieve the version of the package.
One must use pip freeze or python -c "import pkg_resources; print(pkg_resources.get_distribution('hermes_python').version)" to retrieve the running version of hermes_python package.

Use cases

• debug, support
• application wrapper handling different version of hermes-python in case of breaking changes.

Envisioned Solution
The pythonic way to do it --> hermes_python.__version__

[anthonyray]

Sure, this will be added in 0.4.2.