Allow update.py copy config files and binaries

Implements blueprint common-binaries

Add support to update.py for copying config files and binaries matching

  etc/oslo/$module*.conf
  bin/oslo-$module*

into the destination project after replacing 'oslo' with the destination
project name.

This is specifically intended for rootwrap but may be applicable in
other cases in the future.

Change-Id: If8a3a815ef452b0dd73ed28cb61a7ff16a9dee5c
Merge "Allow update.py copy config files and binaries"