What's changed:
- New option for high-resolution waterfall (Issue #172)
- Much higher time resolution in waterfall (Issue #172)
- DSP processing optimizations and multithreading to reduce single-core churn
- Larger FFT size options (Issue #172)
- FT8 decode list settings are now persistent (Issue #162)
- Frequency Memory labels added to waterfall (Issue #166)
- Diversity controls added to main UI (Issue #165)
- CW fixes (Issue #170)
- Multi radio control and diagnostics fix (Issue #169)
- Zooming in on ICOM USB/CAT waterfall switches to audio waterfall at a certain zoom level for enhanced detail
- C segfault fix in Dream DRM decoder (Issue #171)