Change the package base name of the Go code, from
`git.blender.org/flamenco` to `projects.blender.org/studio/flamenco`.
The old location, `git.blender.org`, has no longer been use since the
[migration to Gitea][1]. The new package names now reflect the actual
location where Flamenco is hosted.
[1]: https://code.blender.org/2023/02/new-blender-development-infrastructure/
Convert the database interface from the stdlib `database/sql` package to
the GORM object relational mapper.
GORM is also used by the Manager, and thus with this change both Worker
and Manager have a uniform way of accessing their databases.
The test can hang occasionally, and needs some love & attention. For now
I've done some patching to make it slightly better, but still disabled it
and added a `FIXME` note to it.
Fix sqlite issues in the "upstream buffer" test. The test used
`:memory:` to have an in-memory DB to separate from other tests. The
"flush at shutdown" code runs in a different goroutine, though, and
creates a new DB connection. The SQLite separation was too strong,
making that function not find any tables. This is now solved by having
an in-memory database that's shared between all connections made from
the same unit test.
The upstream buffer takes care of two things: communication with Flamenco
Manager (first context) and buffering things in a SQLite database (second
context). This commit separates those two contexts, so that shutting down
the application isn't going to prevent buffering things in the database.
The add-on code was copy-pasted from other addons and used the GPL v2
license, whereas by accident the LICENSE text file had the GNU "Affero" GPL
license v3 (instead of regular GPL v3).
This is now all streamlined, and all code is licensed as "GPL v3 or later".
Furthermore, the code comments just show a SPDX License Identifier
instead of an entire license block.
