Local file support for 'tvg-logo'

[fire-hawk-86]

Local file support for 'tvg-logo' attribute in '.m3u8' files. Example: tvg-logo="file:https:///home/username/Video/Movies/Movie Name (1986)-landscape.jpg"

[fire-hawk-86]

It's a very simple fix, but it works.
Of course, feel free to implement it a different way.
I just thought it would make sense to be able to use a locally stored logo/poster, for locally stored movies and shows.
Before, I tried to use the path to the image beginning with / but that didn't work. Then I tried using the file:https:// scheme, but that also didn't work for the tvg-logo attribute.

The fix just copies the part after file:https:// to the relevant variable, where the cached logo is usually stored.