Mqtt discovery for ha (#323)

* MQTT discovery factoring

* add DHT discovery

* BME topic macro change

* add sensors to ha discovery

* correct a comment typo #327

* let the possibility at buildtime to don't publish service data

* reduce string usage

* change MQTT ONOFF actuator to ON OFF commands instead of true false

* add ZactuatorONOFF discovery

* add simple publishing for GPIO input

* Add RF switch and gateway discovery

ZactuatorONOFF.ino

@@ -38,14 +38,13 @@ void setupONOFF(){
   trc(F("ZactuatorONOFF setup done "));
 }
 
-#ifdef simplePublishing
   void MQTTtoONOFF(char * topicOri, char * datacallback){
   
-    bool boolSWITCHTYPE;
-    boolSWITCHTYPE = to_bool(datacallback);
-    String topic = topicOri;
-   
-    if (topic == subjectMQTTtoONOFF){
+    int boolSWITCHTYPE;
+    if (strcmp(datacallback, "ON") == 0) boolSWITCHTYPE = 1;
+    if (strcmp(datacallback, "OFF") == 0) boolSWITCHTYPE = 0; 
+
+   if (strcmp(topicOri,subjectMQTTtoONOFF) == 0){
       trc(F("MQTTtoONOFF data analysis"));
       trc(boolSWITCHTYPE);
       digitalWrite(ACTUATOR_ONOFF_PIN, boolSWITCHTYPE);
@@ -53,14 +52,9 @@ void setupONOFF(){
       pub(subjectGTWONOFFtoMQTT, datacallback);
     }
   }
-#endif
-
-#ifdef jsonPublishing
   void MQTTtoONOFF(char * topicOri, JsonObject& ONOFFdata){
    
-    String topic = topicOri;
-   
-    if (topic == subjectMQTTtoONOFF){
+   if (strcmp(topicOri,subjectMQTTtoONOFF) == 0){
       trc(F("MQTTtoONOFF json data analysis"));
       int boolSWITCHTYPE = ONOFFdata["switchType"] | 99;
       if (boolSWITCHTYPE != 99) {
@@ -75,4 +69,3 @@ void setupONOFF(){
     }
   }
 #endif
-#endif