add tags based on fields in .ass/.ssa subtitles

[aleksejrs]

This is only a suggestion, because I've seen only a couple sources of .ass subtitles with any names specified, and I don't even know of a good way to replace/update the movies2anki cards I already have.

https://thedoctorteam.ru/project/mlp/season-1/friendship-is-magic-part-1/original
https://media.thedoctor.team/videos/season1/1x01_EngSubtitles.ass

In this example, the Style column contains the name of the character to color the text a character-specific color. "Somepony" is not a specific character, but "Default" is a narrator in that context.

Tags like "subtitlecharacter::Twilight" or "SubtitleStyle::Twilight" could be used for https://github.com/Rct567/FrequencyMan to put them in different targets and learn some voices separately.

---

[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: Default,Arial,30,&H00FFFFFF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,2,2,2,10,10,20,1
Style: Twilight,Arial,30,&H00FFFFFF,&H000000FF,&H009C1B9F,&H00000000,0,0,0,0,100,100,0,0,1,1,2,2,10,10,20,1
Style: Somepony,Arial,30,&H00FFFFFF,&H000000FF,&H007D7E80,&H00000000,0,0,0,0,100,100,0,0,1,1,2,2,10,10,20,1

[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text

Dialogue: 0,0:00:08.08,0:00:11.57,Default,Default,0,0,0,,Once upon a time, in a magical land of Equestria...

Dialogue: 0,0:01:23.58,0:01:27.64,Default,Default,0,0,0,,The elder sister took on responsibility for both sun and moon....
Dialogue: 0,0:01:27.84,0:01:31.30,Twilight,Default,0,0,0,,...and harmony has been maintained in Equestria for generations since.
Dialogue: 0,0:01:34.65,0:01:39.14,Twilight,Default,0,0,0,,Hm... Elements of Harmony. I know I've heard of those before.
Dialogue: 0,0:01:39.94,0:01:41.06,Twilight,Default,0,0,0,,But where?
Dialogue: 0,0:02:21.88,0:02:23.97,Somepony,Default,0,0,0,,There you are, Twilight!
Dialogue: 0,0:02:23.97,0:02:27.47,Somepony,Default,0,0,0,,Moondancer is having a little get-together in the west castle courtyard.
Dialogue: 0,0:02:27.66,0:02:28.78,Somepony,Default,0,0,0,,You wanna come?
Dialogue: 0,0:02:28.89,0:02:33.16,Twilight,Default,0,0,0,,Oh, sorry girls. I gotta lot of studying to catch up on.
Dialogue: 0,0:02:35.86,0:02:38.30,Somepony,Default,0,0,0,,Does that pony do anything except study?
Dialogue: 0,0:02:39.32,0:02:42.07,Somepony,Default,0,0,0,,I think she's more interested in books than friends.