* Try bumping Coverity up now that we should be on a newer version
of it (so hopefully it supports GCC versions with 2 digits in their
number).
* Allow the metadata test to fail because of an upstream bug in the
appdata validation program that thinks the description tag isn't
translated even though it is.
* Switch to using org.kicad.kicad as the main app ID
* Move the appstream file to a metainfo file
* Rename all metadata files to use the reverse DNS scheme
* Add header matching to mime type files where possible
* Add a mime type for gerber job files
* Add a QA test that verifies all the linux metadata files and
run it in CI
* Update the visible names in the launcher entries to be more
consistent with the internal visible names
* Update various strings and items in the metainfo file so they
are more descriptive and easier to read
Gitlab 13.3 changed so now pipelines started by developers run
inside the main repo, even for MRs. So we must explicitly add
the source repo to the git environment and use it.
Also, explictily say the formatting test doesn't need any other jobs
so that it will run in parallel with the main build, otherwise it
won't run until the test stage starts.
Don't interrupt the compilation pipelines, instead let
them finish. That will ensure the author of the change
gets notified if their push breaks something.
