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Adding support of Brewblox using MQTT

clean up of initial calculation

Introducting new tilt equation

• should provide better result on cylinder rotation #410

Thanks for contributions:

Update to correct how the temperature type selection saves to stop user having to select it twice. (#386) @thegreatgunbantoad Create simple python calibration tool calibrate.py (#370) @apro Fixed Spelling (#368) Do not add params into WifiManager if WIFI_MANAGER_MAX_PARAMS exceeded (otherwise it will cause crash) (#346) @pppedrillo Increased Max voltage factor to 25% and Fixed MQTT serial Log (#341) @ldab Improves restoration of Wifi connection when it has been lost (#318) @jmcazaux add two point calibration support (#336) @vitotai