Add LUCIcfg scripts to generate test definitions

BUG=chromium:1051691
TEST=Ran scripts

Change-Id: Ifac51ba3dd7bad08a82d22e894c1cdca71d05719
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/tnull/+/2238795
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
Commit-Queue: Jacob Kopczynski <jkop@chromium.org>
Tested-by: Jacob Kopczynski <jkop@chromium.org>
Auto-Submit: Jacob Kopczynski <jkop@chromium.org>
8 files changed