Update watch-later-options workaround for mpv 0.38.0

[low-batt]

This commit will:

• Add a new method userOptionsContains to MPVController
• Remove the workaround from mpvInit for secondary-sub-visibility missing from watch-later-options
• Add a workaround to mpvInit for secondary-sid and secondary-sub-delay missing from watch-later-options
• Add sorting of the logged watch-later-options value

The problem in mpv with secondary-sub-visibility missing from watch-later-options has been fixed with the upgrade to mpv 0.38.0. However secondary-sid and secondary-sub-delay are missing from watch-later-options in mpv 0.38.0 (mpv issue mpv-player/mpv#14417). This commit updates the workaround for 0.38.0. Issue #14417 has been fixed in mpv, so the next time mpv is upgraded this workaround can finally be removed.

• I have read CONTRIBUTING.md
• This implements/fixes issue #.

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Description:

[low-batt]

The log messages look like:

22:37:48.778 [mpv0][d] Adding secondary-sid to watch-later-options
22:37:48.778 [mpv0][d] Adding secondary-sub-delay to watch-later-options
22:37:48.778 [mpv0][d] Options mpv is configured to save in watch later files: ab-loop-a,ab-loop-b,af,aid,audio-delay,brightness,contrast,deinterlace,edition,gamma,hue,mute,panscan,saturation,secondary-sid,secondary-sub-ass-override,secondary-sub-delay,secondary-sub-pos,secondary-sub-visibility,sid,speed,start,sub-ass-force-margins,sub-ass-override,sub-ass-vsfilter-aspect-compat,sub-delay,sub-pos,sub-scale,sub-speed,sub-use-margins,sub-visibility,vf,vid,video-align-x,video-align-y,video-aspect-method,video-aspect-override,video-crop,video-pan-x,video-pan-y,video-rotate,video-scale-x,video-scale-y,video-unscaled,video-zoom,volume