Enhance homeassistant discovery (V5) (#1275)

* manual re-creation of #1246

* removed non-working approach to get interval

* postpone the MQTT service start until the ClassFlowControll::ReadParameter() gets called

* Increase the max_uri_handlers to 35 (was 30)

* removed newlines in logs

* added parameter to UI

* Register handler to re-start MQTT Discovery

* fix param

code/components/jomjol_flowcontroll/ClassFlowMQTT.h

@@ -14,7 +14,8 @@ protected:
 	ClassFlowPostProcessing* flowpostprocessing;  
     std::string user, password; 
     int SetRetainFlag;
-    int keepAlive;
+    int keepAlive; // Seconds
+    float roundInterval; // Minutes
 
     std::string maintopic; 
 	void SetInitialParameter(void);        
@@ -25,6 +26,7 @@ public:
     ClassFlowMQTT(std::vector<ClassFlow*>* lfc, ClassFlow *_prev);
 
     string GetMQTTMainTopic();
+    bool Start(float AutoIntervall);
 
     bool ReadParameter(FILE* pfile, string& aktparamgraph);
     bool doFlow(string time);