Hi,

These patches add Rime Input Method Engine to guix.

Rime Input Method Engine is a lightweight, extensible input method
engine supporting various input schemas including glyph-based input
methods, romanization-based input methods as well as those for Chinese
dialects.  It has the ability to compose phrases and sentences
intelligently and provide very accurate traditional Chinese output.

Rime is very popular among Chinese users. I prefer it over libpinyin.
But sadly, libpinyin (both in ibus and fcitx) is the only option for
pinyin in guix.

I have already tested these patches on my computer. It works fine.
Please inform me if there is any issue with the code.

--
Meiyo Peng