SM6FBQ / HackRF clone - History

PortaPack: Change initial UI radio topology to match boot state.

So the RX amp isn't rendered for a moment at power-up.

Clock reference: Add UI hook. Simplify selection code.

PortaPack: Make label-drawing functions take a label enum.

PortaPack: Improve speed of frequency rendering.

To reduce impact on hackrf_sweep speed.

PortaPack: Double draw speed of UI, which was impacting hackrf_sweep.

Clock reference: Return enum for selected clock source.