Added is_loading and is_removing properties to TV show object

Split API endpoints into v1 and v2
Refactored allowed web methods to include PUT, DELETE, and OPTIONS
Refactored allowed web headers to include content-type and authorization
Added new series API v2 endpoints
Refactored TVShow airs_next, airs_prev, episodes_unaired, episodes_snatched, episodes_downloaded, and episodes_special methods
Added new TVShow method epsiodes_total to speed-up main show page load times
Added marshmallow to de-serialize SQLAlchemy data for sending back to UI frontend
Added config API v2 endpoint
Converted statusStrings from UserDict to built-in dict without composite splitting
Added IMDbInfo Schema to output json to frontend
Added API v2 Authorization header handling to connect frontend to backend securely
Added API v2 patch method for updating series data
Added API v2 JSON error handler
Refactored how web async calls are done
Added allowed and preferred qualities props to show object
Added poster and banner props to show object
Added to_json method to both show and episode objects
Refactored show object get_overview function into episode object overview property
Added episode manual search API v2 endpoint
Added series episodes rename API v2 endpoint
Refactored languages API endpoint for TheTVDB API client
Refactored indexerAPI indexers function to return list of indexers
Added file browser API v2 endpoint
Updated requirements.txt to work with Python 3.9.x
SR Auth certs are now grabbed and stored to avoid rate-limit issues
Added series API v2 endpoint to add new shows
Added retrieve series metadata API v2 endpoint
Fixed parsing seeders/leechers for IPTorrents
Updated URL for gktorrents

Fixed login issues for YGGTorrents torrent provider

Downgraded feedparser in requirements.txt to 5.2.1

Fixed issue #SICKRAGE-APP-5TZ - NoResultFound exception not handled in get_indexer_absolute_numbering function, not returns -1 when exception is thrown
Fixed issue #SICKRAGE-APP-5YH - FakeUserAgentError exception not handled when attempting to get a random user agent string for core web sessions, now returns default SR user agent string if exception is thrown
Fixed issue #SICKRAGE-APP-5XV - NoneType possibly returned when getting season/episode numbering from episode object due to improper comparison
Fixed issue #SICKRAGE-APP-5XE - AttributeError occurrence when trying to split show scene exceptions data by delimiter if previously never set
Fixed issue #SICKRAGE-APP-5ZS - TypeError thrown due to episode status being set as a string instead of a integer

Fixed issues with provider results containing both an airdate and season/episode in them being matched as standard to be matched as scene_date_format instead