features added (#14)

* Update group_object.h

* Update group_object.cpp

* Update knx_facade.cpp

src/knx/group_object.cpp

@@ -165,6 +165,12 @@ bool GroupObject::objectReadBool()
     return _data[0] > 0;
 }
 
+uint8_t GroupObject::objectReadByte()
+
+{
+  return _data[0];
+}
+
 void GroupObject::requestObjectRead()
 {
     _commFlag = ReadRequest;

src/knx/group_object.h

@@ -56,6 +56,7 @@ public:
     */
     int32_t objectReadFloatDpt9();
     bool objectReadBool();
+    uint8_t objectReadByte();
     /**
     * Request the read of a communication object. Calling this function triggers the
     * sending of a read-group-value telegram, to read the value of the communication

src/knx_facade.cpp

@@ -46,6 +46,7 @@ bool KnxFacade::progMode()
 
 void KnxFacade::progMode(bool value)
 {
+    Serial.println("progmode");
     _bau.deviceObject().progMode(value);
 }