[RFE] calm needs to know about ZStandard compressed archives

[Achim Gratz]

While waiting for the Perl bootstrap I've been experimenting with having
cygport produce .tar.zst packages.  Calm (mksetupini) does not recognize
these at the moment, but I've been able to monkey-patch it by adding
'|zst' in the obvious places.  Can this be done officially, please?  I
can't help noting that these really shouldn't be literal strings so that
you only need to change them in a single place if necessary; so perhaps
common_constants.py would be a good place for that definition.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

SD adaptations for KORG EX-800 and Poly-800MkII V0.9:
http://Synth.Stromeko.net/Downloads.html#KorgSDada