Update to Python 3.10 and discord.py 2.0 beta

[Arcensoth]

This PR is structured around 3 overarching goals:

1. Update to Python 3.10. Some extensions may need to be adjusted to transition smoothly.
2. Update to the (final) discord.py 2.0 beta. Again, some extensions may need to be adjusted.
3. Merge commanderbot-core into commanderbot-ext for one final, unified commanderbot-py project.

Extensions to update

• automod
• faq
• help_chat
• invite
• jira
• kick
• manifest (wait for Added manifest command #51)
• pack
• ping
• poster_board
• quote
• roles
• status
• vote (wait for Vote improvements #45)

Additional changes

• commanderbot-core has been merged into commanderbot-ext.
  • The repository will be renamed to commanderbot-py after this PR is merged.
  • The package will be renamed from commanderbot_ext to commanderbot to take its place.
• Exception handling logic has been reworked.
  • Fixes Account for more base exceptions #53
• Reconsidered all commands to use a ctx.reply wrapper with pings disabled.
  • Fixes Reconsider all commands to use a ctx.reply wrapper with pings disabled #42
• allowed_mentions field in root bot config is now supported.
  • Fixes Support allowed_mentions in the root bot config #52

Changes to automod

• Even data now includes user fields.
  • Fixes automod: Event data is missing user fields #43
• Even data now includes member date fields by default.
• message triggers now allow basic matching of message content.
  • Fixes automod: Allow message triggers to match message content #44

Changes to roles

• Unresolved roles are now deregistered and cleaned-up automatically.
  • Fixes roles: Clean-up unresolved roles #47
• Elevated commands can no longer add/remove unregistered roles to/from users.
  • Fixes roles: Elevated commands can add/remove roles that are not registered #48
• Users can now join/leave multiple roles in one command.
  • Fixes roles: Allow joining/leaving multiple roles in one command #49
• Multiple roles can now be added/removed to/from multiple members all in one command.
• Roles can now be targeted using a partial name match.
  • Fixes roles: Make it easier to type roles with complex names #50
• Roles can now be configured to be able to run elevated commands.
  • Fixes roles: Allow configurable roles to run elevated commands #18