Fix most linter warnings reported by 'staticcheck'. This doesn't fix all
of them, some unused functions are still there, and some generated code
also still triggers some warnings. Most issues are fixed, though.
No functional changes, except for the captialisation of some error
messages.
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/
Build with `make stresser`. Run with:
./stresser -worker UUID -secret ABCXYZ
The worker ID and secret can be obtained from
`flamenco-worker-credentials.yaml`. If left empty, the stresser will
register as a new worker, and log the credentials to be used on the next
invocation.
