* Added ratelimiter
Handles the new ratelimit headers
- X-RateLimit-Remaining
- X-RateLimit-Reset
- X-RateLimit-Global
* Pad only reset time with a second
* Moved ratelimiter out of internal package
* Change for loop, move global ratelimit check inside sleep check
* Moved ratelimiter locking to getBucket
* Added global bucket
* Changed how bucket id's are done
Now each request function will need to specify the bucket id if the
endpoint contains minor variables
* Allow empty bucketID in request
* Remove some uneeded Endpoint* function calls
* Added test for global ratelimits
* Fixed a silly little mistake causing incorrect ratelimits
* Update test comments, Fixed treating a endpoint as 2 in ratelimiting
* Use date header from discord instead of relying on sys time sync
* Update all REST functions to use RequestWithBucketID
* Embed mutex into bucket
* Added webhook and reaction buckets
