User profile customization

[bitfl0wer]

It should be possible to modify all aspects of a user profile using this library. This includes, but is not limited to:

• [x] Username
• [x] Discriminator
• [x] Avatar
• [x] Accent Color
• [x] Email
• [x] Pronouns
• [x] Banner
• [x] Bio
• [ ] Theme Colors
• [ ] Phone
• [x] NSFW
• [x] Disabled
• [ ] Deletion
• [ ] Testing