Include TUM-Live-Worker-v2 in TUM-Live

[joschahenningsen]

This PR

• Adds https://github.com/joschahenningsen/TUM-Live-Worker-v2/ as a go submodule.
• Adds an action that builds all components of the worker as docker images when the repo is tagged
• Adds the worker to dependabot
• Adds a go.work file in order to resolve the worker dependencies without pushing them to GitHub first. (read more here https://go.dev/doc/tutorial/workspaces)
  • this feature requires go 1.18 and a recent goland version. Make sure to upgrade @MatthiasReumann @mono424 @alexanderstephan :)
• Renames the module from TUM-Live to github.com/joschahenningsen/TUM-Live to follow gos naming conventions
• Renames the executable package to cmd/tumlive and worker/cmd/worker to follow gos naming conventions

Since I didn't change any of the code in /worker but just pasted it from the other repo, feel free to ignore it when reviewing.

closes #291

[alexanderstephan]

Looks good to me! 🎉 I just found some really minor things.

[joschahenningsen]

Thanks for the input @alexanderstephan, quite a bit of refactor->rename mistakes :D Should be fixed now.

I'm still struggling to properly tidy and get go modules (golang/go#50750) but I think this should be fine for the most part once this is pushed to dev

[alexanderstephan]

Yeah, I think pushing could fix it. What a pity though... 🙈