Add Nerd Fonts based icontheme

[Furglitch]

This icon pack includes a variety of icons from the Nerd Fonts project, in both plain black and white, as well as all four Catppuccin palettes.

Icons (glyphs) were pulled directly from Ubuntu Nerd Font 0.83 using FontForge, and adjusted for positioning as well as coloring via shell scripts.

The Nerd Fonts projects is licensed under the MIT license, but seeing as it's an aggregation of icons from other projects, I've included licensing info for those as well (FontAwesome and Material Design)

[GameLord2011]

I really want this in.