CS2 workshop implementation

[ReneRebsdorf]

Discussed in #31

^{Originally posted by EMRandall13 December 19, 2024}
As of writing, the CS2 Workshop now has full support for annotations. I wanted to spread awareness as soon as possible and urge the owner to consider migrating all the current work here, to the Workshop. I'm personally okay with my contributions being left unaccredited.

• Convert repository structure to fit better with the new "product" (A workshop submission)
• Update README with instructions on how to work with the new repository
• Configure script to use workshop, use manually initially
• Setup github runner to use SteamCMD and uploading to the workshop

[ReneRebsdorf]

Reference: https://steamcommunity.com/sharedfiles/filedetails/?id=3367125162

[ReneRebsdorf]

Having some issues with parsing the VDF config file for SteamCMD, and a bit pressed on time to investigate.

'main' contains working code when running locally, and I have a branch where I work on automating the updating, until then I will update it manually.