First pass at adding GPS support to CIMUXSens_MT4.
Don't give direction until know how to give a correct one.
Tell XSENS SDK to receive GPS, UTC and Status, now they are being processed.
Use the sample frequency rather then hardcode one.
Add GPS Xsens change to change log.
Merge pull request #92 from jabjoe/xsens_gps

Xsens gps