Test for Si4463 + ESP32S3

Expected wiring (change in Test/src/si4463.cpp):

Si4463 pin	ESP32 pin
nSEL	IO10/SPI_CS
SCK	IO12/SPI_CLK
MISO	IO13/SPI_Q
MOSI	IO11/SPI_D
SDN	IO01
IRQ	IO02
GPIO_0	IO16 (direct mode/clk)
GPIO_1	IO03 (direct mode/data)

Compile&upload with platformio

• pio run --target=upload

Monitor

• pio device monitor -b 115200

On monitor

Command	Function
P	-> Powercycle
Fnnn.nn	-> Set RX Frequency (active after next "run" command)
C	-> Send WDS config to Si4463
R	-> Run (START_RX)
S	-> Stop (+print statistics)
Vxx	-> Verbosity (bitmask, hex) x=00..ff, vK color on, vk color off