Witch-highlights

What's new?
This update contains a large code refactoring change. Additionally, the *login_twitch* and *login_acr* methods have been removed. Instead of calling these (now deprecated) methods, the user should pass the *twitch_credentials* and/or *acr_credentials* variables to the *TwitchHighlights* constructor to perform the proper authentication steps for the APIs.
Bug fixes
- Fixed a bug in the *make_video_by_streamer* method. Whenever the user would fetch clip metadata for multiple streamers, an error would occur when merging the metadata into a single list.

What's new?
A new feature has been added that allows users to exclude music copyrighted clips from the video to be created. This is done using the ACRCloud API. In order to use this feature, users must first call the *acr_login* method on the *TwitchHighlights* instance, which performs some checks and makes sure the ACRCloud API can be used. After this succeeds, users can use the *filter_copyright* parameter in the *make_video_by_category* and *make_video_by_streamer* methods.

Bug fixes
- Fixed the bug in language filtering used in the *make_video_by_category* and *make_video_by_streamer* methods.

Initial release