Add support for digital input pins in the e2p config of the envsensor.
Add message group "GPIO" and a message to send the status of digital pins.
Add support for digital pins in the envsensor.
Merge branch 'develop' of github.com:breaker27/smarthomatic into develop
send out digital pin status directly after power up
Add support for Arrays of BoolValues (other types will follow as needed).
Support GPIO.DigitalPin message (only the 1st pin currently).
DigitalPin send cycle: Send every 7 min. in cycle mode. Send immediately in "OnChange" mode and after 28 min.
Add header file for GPIO message group.
fhem: add digital inputs to fhem device readings
correctly support set commands

The fhem web interface now shows the correct set commands
according to the device type
implement get commands for EnvSenor inputs