steamworks v3

[JohnCorby]

• [x] merge with dev and make sure that all works
• [ ] update mirror
  • [ ] see what dlls you can remove from the folder
• [x] update nuget thingy
• [x] rewrite rerouter (for achievements and dlc)
• [x] add onreceiveerror stuff
• [x] localization (product user id -> steam id)
• [x] update the title/description/copyright stuff to be consistent across all projects
• [x] do the hook/gamepad thing (seems to not actually be needed)
• [x] test more