Added file and namespace for the Airmar100WX. I'm on a plane right now so I can't really test it. Right now the reading portion of the code is missing. It will eventually use TinyGPS++ to extract the NMEA-0183 messages from the serial stream. Also wrote a test program and a bunch of pseudo unit tests to check the conversion from relative wind to absolute wind. Needs testing.
Updated readme.
Added commented code for the BLDC Monitor and Power Monitor to the main solarsurfer file. It shouldn't be uncommented until the software serial port pins are determined.
Added loops for reading more sensors. They are blank for now.