Maintenance release
- Use libusb 1.0.26 on Windows
- NFM mod: make pre-emphasis and CTCSS highpass filter optional
- ADS-B: Add support for displaying airport weather (METARs) from CheckWX. PR #1280
- ADS-B: Add mapboxgl support, as osm maps do not work in Qt 5.15.3. PR #1280
- ADS-B: Support different map types for mapboxgl. PR #1280
- Map: Default to mapboxgl for Qt 5.15.3, as osm doesn't work. PR #1280
- Disable NAN and INF optimisations, as NANs are used in some code. PR #1281
- VOR Localizer: Add support for DVORs. PR #1282
- Add DVORs to ADS-B. PR #1282
- USRP: Check if device supports automatic clock rate. Issue #1278
- Radio Clock: fixed common channel settings menu trigger. Fixes #1286
- Features: fixed common settings menu placement. Issue #1286
Windows install link: https://github.com/f4exb/sdrangel/suites/6900049957/artifacts/267769675