Integrate NerdFontTerminatoR (NFTR fonts)

[pleonex]

Is your feature request related to a problem? Support NFTR fonts.

Describe the solution you'd like Migrate the code from https://github.com/pleonex/NerdFontTerminatoR to this repository in yarhl style. Update the documentation to explain how to use the converters, with examples and document the format especification.

Describe alternatives you've considered None

Additional context This is the standard font format for NDS.