Pygpsclient

What's Changed
* Rc 1.4.22 by semuadmin in https://github.com/semuconsulting/PyGPSClient/pull/151

ENHANCEMENTS:

1. Add guided custom offline map import facility to `Menu..Options..Import Custom Map`. If the Python `rasterio` library is installed, the map bounding box can be automatically extracted from any georeferenced image (e.g. GeoTIFF - the default custom map image format). If the image is not georeferenced, or if rasterio is not installed, the bounding box must be entered manually. Invoke `File..Save Configuration` to save the imported custom map settings to disk.

NB: the `rasterio` library is not a mandatatory dependency for PyGPSClient and is not automatically installed with PyGPSClient.

1. Add preset commands for SEC message types.
1. Add CNo legend to graphview widget.

**Full Changelog**: https://github.com/semuconsulting/PyGPSClient/compare/v1.4.21...v1.4.22

What's Changed
* Create FUNDING.yml by semuadmin in https://github.com/semuconsulting/PyGPSClient/pull/148
* Rc 1.4.21 by semuadmin in https://github.com/semuconsulting/PyGPSClient/pull/149

CHANGES:

1. Add support for chunked transfer-encoded NTRIP datastreams (requires pygnssutils>=1.1.0).
1. Add "Enable UBX, Suppress NMEA" and "Enable NMEA, Suppress UBX" convenience presets in UBX Configuration Dialog (enables UBX NAV-PVT, NAV-SAT and NAV-DOP and disables all NMEA messages, or vice versa).
1. Add sponsorship link to About dialog and readme.

FIXES:

1. Fix issue with mountpoint selection sometimes not showing information in NTRIP configuration dialog.
1. Fix issue with live coordinates not being presented properly in FIXED NTRIP caster dialog.

**Full Changelog**: https://github.com/semuconsulting/PyGPSClient/compare/v1.4.20...v1.4.21

What's Changed
* Rc 1.4.20 by semuadmin in https://github.com/semuconsulting/PyGPSClient/pull/143

FIXES:

1. Fixes typo in ubx_handler which affects NAV2-STATUS messages https://github.com/semuconsulting/PyGPSClient/issues/142

CHANGES:

1. Minor improvements to settings frame appearance.
1. Add support for logging in underlying pygnssutils utilities (gnssntripclient, gnssmqttclient, gnssserver)
1. App `get_coordinates()` method now returns additional coordinate and fix data as dict rather than tuple.

**Full Changelog**: https://github.com/semuconsulting/PyGPSClient/compare/v1.4.19...v1.4.20

What's Changed
* RC 1.4.19 by semuadmin in https://github.com/semuconsulting/PyGPSClient/pull/141

1. Add modular logging facility. Logging configuration is defined globally in `__main__.py`, with global log level and destination set via the CLI `--verbosity` and `--logtofile` arguments. Subsidiary modules can use `self.logger = logging.setLogger(__name__)` and individual module log levels can be overridden using e.g. `self.logger.setLevel(DEBUG)`.
1. Minor About dialog updates.
1. Tidy up string definitions.

**Full Changelog**: https://github.com/semuconsulting/PyGPSClient/compare/v1.4.18...v1.4.19