Currently, the installation via WebUI is mostly pushing the Next button
which seems to be ok for the production which is based in the US.
This PR makes openQA to select languages when the G-I-S runs
before Anaconda. The particular language is selected based on
the LANGUAGE variable.
This is tailored to the initial deployment of webUI in
Workstation live images only; we may need to tweak flows and
approaches as webUI goes further.
Signed-off-by: Adam Williamson <awilliam@redhat.com>
