Added code to parse GPTXT nmea sentences. Added methods to calculate
sentences/second and raw bytes/second.
Signed-off-by: Noel Eck <noel.eck@intel.com>
NMEA GPS class now uses threads to handle parsing NMEA sentences.
Currently only handles GGA, GSV, and GLL types. Added queues for
holding parsed data.
* Parsing thread
* Parse GPS Fix from GGA and GLL
* Parse satellite info from GSV
* Provide a queue for GPS fix data as well as raw sentences
(for debugging)
* Target structures and NMEAGPS class have a __str__() method
which summarizes the objects into a std::string. These are
tied to the __str__ method in python
* Added google unit test for the above functionality
Signed-off-by: Noel Eck <noel.eck@intel.com>
