Jump to 7.x was not done due to usage of `maven` plugin. This needs to
be migrated to `maven-publish`. `maven` was deprecated in Gradle 5.6,
along with `uploadArchives`.
Signed-off-by: Taylor Smock <tsmock@fb.com>
All artefacts have an osmosis prefix, however the project names were
named without the osmosis prefix. This causes some confusion when
trying to publish to Maven because we end up with an artefact name
including osmosis, but a project name not including osmosis. It seems
simpler to rename all projects to include the osmosis prefix.
