[WIP] Expand round system

[joaoburatto]

Summary

Continue the work on the round system.

Tasks

• [ ] A user can set to be ready or cancel ready in the lobby.
• [ ] User "readyness" only exists during the warmup phase.
• [ ] A admin user can cancel the warmup.
• [ ] Warmup cancelling is networked.
• [ ] User "readyness" is networked.
• [x] Added LogColors for easy debugs.
• [x] Added a string extension method to colorize strings.

Related Issues

#913