Create models for all Discord objects

[Bluenix2]

Summary

All objects recieved from Discord needs to be wrapped with a class that takes the dictionary from the JSON data and sets attributes. There's a lot of them, so this is tracking that.

Tasks

These are in no particular order:

• Guilds
• Guild templates
• Members
• Roles
  • Roles
  • Permissions
  • Permission overwrites
• Emojis
• Stickers
• Reactions
• Channels
  • Text channels
  • Voice channels
  • Category channels
  • News channels
  • Thread channels
  • Forums
• Invites
• Application
• Intergrations
• Users
• Messages
  • Attachments
  • Embeds
• Webhooks
• Audit log objects
• Voice state
• Auto moderation
  • Automod rules
  • Automod executions

[Bluenix2]

I have decided to do this completely stateless - designing a state API with caching at the same time and figuring out how to pass the RESTClient is premature optimization that's slowing down the progression of this issue.