This reverts commit 34e073fc.

* Added functions to get sleep mode from NM

* Implemented Timer class

* Commented the Timer class

* Improved Timer class

* Replaced battery report with Timer

* Using Timer in SensorRainGauge class

* Add custom report time to Sensor

* Used Timer for force update

* Added safeguard to SensorDigitalOutput

* Added capability to turn on with a timer for SensorDigitalOutput

* Tested all the new functions and fixed the issues

* Stopping the timer if setInputIsElapsed is on and a LOW value is set

Add debug message with encryption status

* Added new sensors, updated docs

* Added SensorRain

* Added SensorSoilMoisture

* Updated docs with how to contribute instructions

Decreased the number of items of the _sensors array