* Sort Performers by Last O / View
Added 2 New Sorts 'Last O At' and 'Last Played At' for Performers
* Filter Performers by Play Count
Was not sure whether to label this 'views' as the code does, or 'plays' but chose the latter as it gives parity across the scenes and performers filters.
* Sort Performers by Play Count
Reutilised the prior selectPerformerLastOAtSQL code that was used to filter by play count to additionally provide useful sorting options.
* Replaced O-Counter with O Count
To better match other sort and filter options like Gallery Count, Image Count, Play Count, Scene Count, Tag Count, File Count, Performer Count and Play Count, we should really use O Count rather than O-Counter for increased legibility and coherence.
* Title Case on 'Interactive speed' and correct capitalization for 'phash'
Every other filter/sort option is using Title Case other than 'Interactive speed' which stands out as incorrect. Also, fixing the correct mid-word capitalization on phash to pHash.
* Formatting
Formatted source code and Ran all tests
3d0a8f653a