We do this in quite a few places and need to do it in another,
so let's just have a function for it. It takes a file glob
so we can have it run on a different one for _live_build.
Signed-off-by: Adam Williamson <awilliam@redhat.com>
Just like the installer image build test, only...it builds a live
image. This involves reimplementing quite a chunk of the Koji
livemedia task. Ah, well. Also involves rethinking the flavor
names a bit here, these seem...better.
Signed-off-by: Adam Williamson <awilliam@redhat.com>
