Log messages via JTAG interface

Passing log messages over the JTAG interface, instead of UART0

Espressif resources

https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/api-guides/app_trace.html#app-trace-logging-to-host

Getting it working

esp_app_trace.h needs app_trace adding to your AMakeLists.txt

	REQUIRES
		app_trace

Then in your project:

#include "esp_app_trace.h"

A work in progress…so far we’ve been unable to make this feature actually work…!
Got to here: https://www.esp32.com/viewtopic.php?f=13&t=33205&p=112706#p112706

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