[chirp_devel] Patch for #681: Add support for band plans

[Charles J. Hargrove]

The ARRL suggested bandplan has always been a little quirky because of how
it is really used in the real world.  Look at this repeater coordinator to
get an idea (http://www.metrocor.net/bands/440MHz.htm)

> N2NOV, I've found a US amateur band plan.  It supplies channel step and
> mode, which will be reflected in the defaults once I've incorporated it
> into bandplan_na.py:
> http://www.arrl.org/band-plan

--
Charles J. Hargrove - N2NOV
NYC ARECS/RACES Citywide Radio Officer/Skywarn Coord.

NYC-ARECS/RACES Net Mon. @ 8:30PM 147.360/107.2 PL
http://www.nyc-arecs.org and http://www.nyc-skywarn.org

NYDXA SWL & Scanner Net Wed. @ 9PM 147.360/107.2 PL
http://www.n2nov.net

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