Pynmeagps

What's Changed
* Rc 1.0.38 by semuadmin in https://github.com/semuconsulting/pynmeagps/pull/59

1. Add Locosys proprietary NMEA GET and SET messages:
- $PINVCRES: Clear the NVM data
- $PINVCSTR: Start session
- $PINVMATTIT: ATTIT information
- $PINVMIMU: MEMS RAW-DATA message information
- $PINVMINR: Calibration status
- $PINVMSTR: Session Status
- $PINVMSLOPE: SLOPE information
- $PLSC: Set status/poll version
- $PLSR: Set status response
- $PLSVD: Attitude yaw, pitch, roll

NB: $PMTKnnn: proprietary command message sets not yet implemented

**Full Changelog**: https://github.com/semuconsulting/pynmeagps/compare/v1.0.37...v1.0.38

What's Changed
* Rc 1.0.37 by semuadmin in https://github.com/semuconsulting/pynmeagps/pull/58

1. Correct `planar()` helper function.
1. Internal logging & exception handling enhancements.

**Full Changelog**: https://github.com/semuconsulting/pynmeagps/compare/v1.0.36...v1.0.37

What's Changed
* RC 1.0.36 by semuadmin in https://github.com/semuconsulting/pynmeagps/pull/57

1. Add further proprietary message definitions.

**Full Changelog**: https://github.com/semuconsulting/pynmeagps/compare/v1.0.35...v1.0.36

What's Changed
* RELEASE CANDIDATE 1.0.35 by semuadmin in https://github.com/semuconsulting/pynmeagps/pull/56

FIXES:

1. Fixes & simplifies the derivation of NMEA `NS` and `EW` values when creating `NMEAMessage` objects (e.g. GNGLL) using individual keyword arguments. `NS` and `EW` will always be derived from the sign of the provided signed decimal `lat` and `lon` values and need not be provided explicitly. When creating an `NMEAMessage` using a single payload argument (_which is effectively what happens when parsing incoming serial data streams_), the value of `NS` and `EW` in the payload will determine the sign of the decimal `lat`/`lon` values in the `NMEAMessage` object.

**Full Changelog**: https://github.com/semuconsulting/pynmeagps/compare/v1.0.34...v1.0.35

What's Changed
* RELEASE CANDIDATE 1.0.34 by semuadmin in https://github.com/semuconsulting/pynmeagps/pull/53

FIXES:

1. Add missing Trimble PASHR Proprietary Pitch and Roll sentence Fixes [52](https://github.com/semuconsulting/pynmeagps/issues/52).

**Full Changelog**: https://github.com/semuconsulting/pynmeagps/compare/v1.0.33...v1.0.34

What's Changed

1. Add planar formula in `nmeahelpers.py` to calculate approximate planar distance between two sets of coordinates. Complements the haversine formula at smaller scales.

* Rc 1.0.33 by semuadmin in https://github.com/semuconsulting/pynmeagps/pull/51

**Full Changelog**: https://github.com/semuconsulting/pynmeagps/compare/v1.0.32...v1.0.33