mime feature proposal: URI globs

for example, on Android a video player can register to open *://*.youtube.com/* and *://youtu.be/* links, a mediawiki reader *://*.wikipedia.org/* links, etc. these are displayed in settings like https:// and http:// are displayed for browsers in GNOME's settings.

in mime it could look like x-uri-handler/*://youtu.be/* or x-domain-handler/youtu.be, similar to the existing x-scheme-handler/http