Add 'production' property to command objects

For Support Requests: [Discord](https://discord.gg/RuEdX5T)

* **I'm submitting a ...**
  - [x] feature request

**Idea:**
Add a beta tester system, that checks if the command is production ready or not. If not only a certain group of ppl can run it (bet testers). Do the beta check by saving all members of the beta tester role on the support discord in cache on startup.