Not possible to install Python-3 with this module

[pillarsdotnet]

It does not appear to be possible, using this module, to install Python3 on Centos-7.

The EPEL package name is python36

I've tried setting python::version to each of the following values, to no avail:

• 3
• '3'
• '36'
• '3.6'
• 'python36'
• 'python3.6'
• 'rh-python36'
• 'rh-python3.6'

[pillarsdotnet]

Duplicates: #303 which is partially fixed by #444

I should probably work on that PR...