Provider Season and Episode search clean up

[VeNoMouS]

Rather than have dupe search code in every provider, create a new centralized helper style class that the provider _get_season_search_strings() and _get_episode_search_strings() functions call, this way it can be managed from one central point rather than each provider be changed.

[dmarcelino]

Hey @VeNoMouS, was there any progress on this? This sounds like a very good idea and ties in nicely with something I've been thinking. Some (anime) shows have some odd patterns, like for example Mushishi: mushishi s2 - 01.
One potential solution would be to have an additional property for each show to define a custom search pattern. That way shows with odd patterns could be addressed.

[VeNoMouS]

@junalmeida and I have discussed the issue, we know what needs to be done... @junalmeida is very very busy lately in his personal life, so I've been doing most of the work and I normally only do work on this project in the weekends as I have a day job and family etc... its on the to do list...

Re the anime numbering ... yes we were are aware of this issue, sickrage addressed this issue in their build by adding in a boolean for episode type... I have reviewed their code and understand what would be required to port it over..

Ultimately there is a bit of work around the whole episode searching... refer #192 that i discussed some of the issues.. related this exact problem

[dmarcelino]

#192 sounds like a good approach for this, I'll monitor that,