Is your feature request related to a problem? Please describe.

Yes, I'd like to load fonts specifically bundled with my application instead of system fonts or only a single font.

Describe the solution you'd like

Skia has SkFontMgr_New_Custom_Directory which is basically exactly what I'd need. If I could create a FontMgr using that, I'd be all set!

Describe alternatives you've considered

Alternatively it'd be nice to add a font loaded from a file to any SkFontMgr but that probably isn't the best approach.