MQTT_Logic and new structure
Added StringHelp with tests

This was called TemperatureLogic in the old projects
StringHelp fixed round err
Thermostat first commit
setpoint and simple calc
Basic valueTimeToSend
Basic time based stage enabler
getValueString, out string to server
Faster builds with -jCPU and exit 1 on fails
setpoint hysteresis
Print fail and $PWD on fail
valueDiffMax
Alarm Low added
Alarm High added
Doxygen with state machine for the alarms
Moved old project files into the new src dir
Removed getSetpoint
Arduino can build it anyway...
Use gpio 2,3,5 for out and A0 for input
Doxygen comments