[aprssig] Calculator APRS, Parseing Compressed Format

[Tapio Sokura]

gerheim at cox.net wrote:
> The first step is making sure I can parse everything (beacon, GPRMC, GPGGA, and compressed).  

You also need to parse mic-e (see the APRS spec), to be reasonably 
universal in decoding positions. Also remember that objects and items 
can contain either a normal position or a compressed position, but not 
mic-e.

   Tapio