Uses tags for a bunch of deps that can use them
Also adds a bunmch of scripts to tools/cpm, notably for checking hashes
and checking for updates.
TODO for the future:
- CI target to check hashes
- Weekly CI to check for updates
Need to get that other CI runner up
additional stuff
- Ports gentoo fixes
- makes solaris work (TODO: sdl2)
- way better docs
- properly separates CPMUtil as a standalone project
Reviewed-on: #2666
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
