legacy API v1 endpoint episode.setstatus now returns episode results for both failed and successful responses

legacy API v1 endpoint show.seasons now returns "Season not found" if season param is passed only and season does not exist in database

legacy API v1 endpoint episode.setstatus will now only backlog wanted episodes after its performed unaired and downloaded status checks

fixed issues with blank URLs being sent to get_image function when populating show/season/episode images

added is_loading_episodes property to show objects to return True or False when show episode data is being populated
legacy API v1 show.seasons and show.seasonlist wait for episode data to finish loading by using show object is_loading_episodes property

fixed episode.setstatus legacy API v1 endpoint
fixed show.addnew legacy API v1 endpoint
fixed issues with Ombi and our legacy API v1 not working together properly

set series_provider_id param for legacy API v1 to optional with a default value of series_provider_default from config

Refactored get_show_list function to allow for offset and limit props