Twitchapi

- Updated Create Prediction to take between 2 and 10 outcomes (thanks lynara!)
- Added "Get Creator Goals" Endpoint (thanks gitagogaming!)
- TwitchAPIException will now also include the message from the Twitch API when available

- Added datetime parsing to `created_at` field for Ban User and Get Banned Users endpoints
- fixed title length check failing if the title is None for Modify Channel Information endpoint (thanks Meduris !)

- Added the following new endpoints:
- "Ban User"
- "Unban User"
- "Get Blocked Terms"
- "Add Blocked Term"
- "Remove Blocked Term"
- Added the following Auth Scopes:
- `moderator:manage:banned_users`
- `moderator:read:blocked_terms`
- `moderator:manage:blocked_terms`
- Added additional debug logging to PubSub
- Fixed KeyError when being rate limited

- `Twitch.get_channel_info` now also optionally accepts a list of strings with up to 100 entries for the `broadcaster_id` parameter

- Added the following new endpoints:
- "Get Chat Settings"
- "Update Chat Settings"

- Added Auth Scope "channel:manage:chat_settings"
- Fixed error in Auth Scope "channel:manage:schedule"
- Fixed error in Endpoint "Get Extension Transactions"
- Removed unusable Webhook code

* fixed bug that prevented eventsub subscriptions to function if main thread asyncio loop was already running