espalarm Code

Move stuff in the NetworkConnected() call.

This is unreliable for now, document that.

Prevent against json == 0

Remove unused variable

Infrastructure to keep track of network status changes

Move the check for your own replies up, avoiding some copy operations

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Minor change

Hmm, it does work somewhat if you set FreeRTOS to run on only one core

Remove the ArduinoOTA dependency (didn't work well).
Replace by something based on the OTA example in esp-idf. Doesn't work yet.
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