self compile SPI3w program and add test

[soypat]

Test guarantees program is identical to before.

[soypat]

Tested on CYW43439 and init is fine :)

tinygo flash -target=pico -monitor ./examples/tcpserver   
Connected to /dev/ttyACM0. Press Ctrl-C to exit.
starting program
time=1970-01-01T00:00:02.009Z level=INFO msg=Init:start
time=1970-01-01T00:00:03.501Z level=INFO msg=Init:done took=1.491238s
time=1970-01-01T00:00:03.501Z level=INFO msg=joinWpa2 ssid=Patoniato len(pass)=15
time=1970-01-01T00:00:06.945Z level=INFO msg=rxEvent event=AUTH status=5 reason=0 flags=0 dev.linkstate=4

[b0ch3nski]

I'd add a check if program and expectedProgram len match before the loop

[soypat]

done!

[deadprogram]

Thanks for working on this @soypat and to @b0ch3nski for review. Now squash/merging.