Improved most providers to use all search patterns defined in sickbeard....

Improved most providers to use all search patterns defined in sickbeard.config.naming_ep_type instead of just forcing sickbeard.config.naming_ep_type[2] (SXXEXX pattern). This fixes issues with several british shows that use the 1x01 format. For example, Atlantis or any other show released by FoV.

Summary of changes:
* Before the changes these providers only performed searches using the S01E01 pattern. 
* After these changes these providers will use the following patterns: 1x01, s01e01, S01E01, 01x01

Do note that after the changes we can add new formats in sickbeard.config.naming_ep_type and all of these providers will pick them up.