the great protocol refactor

[yusdacra]

Resolves #84 Resolves #92 Resolves #93 Resolves #94 Resolves #96

Voice is completely changed (now called webrtc service).

things that will need migration

• chat.v1.Guild
  • guild kind was removed
• chat.v1.Message
  • Content changes
    • Embed changes
    • Attachment changes
    • Reaction changes
• profile.v1.Profile
  • UserStatus changes

[pontaoski]

this is a severely breaking change; we agreed not to do these