RFC:  Work in Progress: convert install script to python

    WARNING: NOT FULLY WORKING.

    This is an unfinished conversion of the install script to
    python.  I started this partly for fun and partly because I was looking
    at making modifications to the installer, including changing the git
    cloning to fit our internal repo structure.  I was also hoping to
    parallelize some of the install to speed it up where possible to speed
    up install regression.

    This includes a bunch of extra code for Threads or other Async helper
    functions.

    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>