Support subtitle font selection

[PangMo5]

• Add subtitle font selection in Settings (Default value: .systemFont)

[LePips]

It's quite fun to play around with the fonts! However, I get a crash from opengl every other time playback is started. Probably from the Selector(("setTextRendererFont:")) as this is currently a workaround for VLCKit. I'm not comfortable shipping this because of these crashes.

I would also like to find out if this directly solves the issue. The author of the issue isn't necessarily correct that it's a "missing font" issue, it just looks like the font doesn't support that character. I know that some other fonts might have these missing characters but we would need to test.

[PangMo5]

I didn't experience the related crash.
Which font did you use to load the word?
Anyway, I think it can definitely lead to problems. Did you see the error on a device other than the simulator? If you saw it on a real device, we could move it to the experimental settings.

[LePips]

Sorry, I haven't been able to test on a physical device because I've been out of town so I'll be able to do that later. I do have that exact episode so I might be able to load up the exact word. The crashing occurred on any font.

[LePips]

Okay, testing on a real device hasn't crashed on changing fonts. All good for normal use.

[LePips]

Sadly, I don't think this necessarily fixes the original issue. I've tested that same media on different fonts and still get the box character or another character in that space. Due to that, I think this is a VLCKit issue so we can close the issue. Nonetheless, this is still a really cool feature.

[PangMo5]

Sadly, I don't think this necessarily fixes the original issue. I've tested that same media on different fonts and still get the box character or another character in that space. Due to that, I think this is a VLCKit issue so we can close the issue. Nonetheless, this is still a really cool feature.

I see :d