Python's platform module provides a very reliable method for determining
the Linux distribution, its version, and any applicable codenames. This
patch adds three bash variables that can be brought into the bash scripts
to take different actions depending on the operating system that is
detected.
Implements: blueprint multi-platform-host
Change-Id: I98bcb478e99e11956618b2327399e18471aab534
d9b9a427aa