Pr/61 add I2C sensors BME280 and BH1750 (#64)

* changed user config

* added lightsensor module

* changed Pin Adresses

* Added I2C Lightsensor

Added the I2C Lightsensor and Switchted most Pins

* removed some debug to serial

removed some debug stuff was send to serial console

* Merge with Master

* Too much things for arduino uno

per default remove sensors for it

* Adding I2C Module function

Opens the Door on OpenMQTTGateway for "i2c Bus Modules/Sensors"

* Fixing BH1750 detection

Fixing the detection for a missing BH1750 Module

* Add libraries and define sensors depending on wiring type #63

OpenMQTTGateway.ino

@@ -17,6 +17,7 @@
   - 1technophile
   - crankyoldgit
   - glasruit
+  - HannesDi
   - Spudtater
   - prahjister
   - rickybrent
@@ -160,6 +161,12 @@ void setup()
 
   lastReconnectAttempt = 0;
 
+  #ifdef ZsensorBME280
+    setupZsensorBME280();
+  #endif
+  #ifdef ZsensorBH1750
+    setupZsensorBH1750();
+  #endif
   #ifdef ZgatewayIR
     setupIR();
   #endif
@@ -223,7 +230,13 @@ void loop()
     #ifdef ESP8266
       ArduinoOTA.handle();
     #endif
-    
+
+    #ifdef ZsensorBME280
+      MeasureTempHumAndPressure(); //Addon to measure Temperature, Humidity, Pressure and Altitude with a Bosch BME280
+    #endif
+    #ifdef ZsensorBH1750
+      MeasureLightIntensity(); //Addon to measure Light Intensity with a BH1750
+    #endif
     #ifdef ZsensorDHT
       MeasureTempAndHum(); //Addon to measure the temperature with a DHT
     #endif