espalarm Code

Revive ftp server

Reduce dependency on Arduino.
Make network module more independent of this application (reusable).
Experiments to create smaller less functional versions of the app.

Only a developer connects one of each (BME280, MCP9808) to a single node.

Bugfix in bme detection, format change in report

Add BME280 code

Add local temperature sensors (with their i²c config)

Add a way to list the ARP table

Add temperature sensors to the configuration.
Bugfix in LittleFS handling.

Report weather sensor data only on changes

Pass info more consistently, adapt logging