Implement Threads and Forum Channels

[Puyodead1]

This PR implements Threads and Forum channels.

• [ ] Channel Types
  • [x] Guild News Thread
  • [x] Guild Public Thread
  • [x] Guild Private Thread
  • [ ] Guild Forum
• [ ] Gateway Events
  • [x] Thread Create
  • [x] Thread Delete
  • [ ] Thread Update
  • [ ] Thread Member Update
  • [ ] Thread Members Update
  • [ ] Thread List Sync
• [ ] Routes
  • [x] Start Thread from Message
  • [x] Start Thread without Message
  • [ ] Start Thread in Forum Channel
  • [ ] Join Thread
  • [ ] Add Thread Member
  • [ ] Leave Thread
  • [ ] Removed Thread Member
  • [ ] Get Thread Member
  • [ ] List Thread Members
  • [ ] List Public Archived Threads
  • [ ] List Private Archived Threads
  • [ ] List Joined Private Archived Threads
• [ ] Other
  • [x] Send guild threads in ready payload
  • [ ] Only send threads the user has permission to see in ready payload
  • [ ] SEND_MESSAGES_IN_THREADS permission
• [ ] Message Types
  • [ ] RECIPIENT_ADD
  • [ ] RECIPIENT_REMOVE
  • [ ] CHANNEL_NAME_CHANGE
  • [ ] THREAD_CREATED
  • [x] THREAD_STARTER_MESSAGE

[TheArcaneBrony]

oh damn, working on threads i see?

[Puyodead1]

oh damn, working on threads i see?

Yep, attempting it again. kek