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.

The six modified files all had spurious characters introduced apparently
as a result of files with the UTF8 BOM marker, U-FFFE, which is
conventionally used at the start of text files to indicate a UTF-8 file
and is invisible under normal circumstances (e.g. the file is opened as
a text file).

None of these files are recognized by espeak-ng on Linux systems because
the 'language variant' line is seen by espeak-ng as starting with a new
character.

'gustave' is an uncorrupted file, it correctly starts with the BOM in
UTF-8 (three bytes), however even though it is correct espeak-ng does
not read it (this may be a separate bug!)

'marcelo' somehow got the BOM character replaced by a literal '?',
notice that 'git diff' on these changes will, indeed, show the removed
character in 'gustave' as a literal '?'.  Notice also that the character
in question, the BOM, is actually the Unicode 'zero width no-break
space', so it is pretty invisible.

The remaining files seem to have suffered major corruption possible as a
result of dostounix style convertions.  The line endings, normally <lf>
on Unix or <cr><lf> on Windows, had been converted to <cr><lf><lf> and
the BOM had been replaced by a <tab> character.

Signed-off-by: John Bowler <[email protected]>

New voices...

IT: fixes some exceptions.

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

This reverts commit 6042eb8d1e.

The change causes an issue with `pt-BR` and possibly other languages
and voices.