Log message:
Import ricty-ttf-2.0.1 as fonts/ricty-ttf from wip/ricty-ttf.

Ricty font is developed for research and programming use.
Ricty is free TrueType font and based on Inconsolata and
Migu 1M (based on M+ 1M and IPA Gothic).

* Latin characters are Inconsolata.
* Non-Latin characters are Migu 1M.
* 2-byte characters have double width of 1-byte ones.
* 2-byte white space is visible.
* 2-byte comma and period are different look.
* An en dash has broken-line look.