Make it possible to notify the phab bridge when a job starts
Because the workflow this replaces made submissions to the phab bridge, and
because lava job ids do not escape this runner when it is used in submit
mode, this MR also adds qa-report-app integration to notify the qa pages
of the initial job submission. This is accomplished by adding
more arguments to the submit
command like this:
submit {filename} --metadata-file metadata.json \
--callback-url http://localhost:28080/ \
--callback-secret a-token