Co-authored-by: Sebastien Le Maguer <[email protected]>

The language is not supported and apparently never has been.

Switch to Portuguese /&~/ for <v>.
Use aveolar /d/ instead of dental /d[/.

The base phonemes file defines alveolar /d/ with the definition for a
dental /d[/ ????

Updates from second zip file, also add missing entry in Makefile.am

Cherokee: Adjust base pitch to be higher (seems to effect consonents).

Also removed the pause after each syllable as it no longer seems needed
with the higher base pitch.

Adjusted the tone start/stop values based on Praat pitch analysis
on the newer base pitch.

Add initial support for Pyash languagege, more info:

* https://www.academia.edu/34133204/Pyash_One_Language_to_Unite_Them_All
* https://gitlab.com/liberit/pyac