add NMEA and NSk counter

lib/counter/GwCounter.h

@@ -0,0 +1,61 @@
+#ifndef _GWCOUNTER_H
+#define _GWCOUNTER_H
+#include <map>
+#include "ArduinoJson.h"
+template<class T> class GwCounter{
+    private:
+        typedef std::map<T,unsigned long> CounterMap;
+        CounterMap okCounter;
+        CounterMap failCounter;
+        unsigned long globalOk=0;
+        unsigned long globalFail=0;
+        String name;
+    public:
+        GwCounter(String name){
+            this->name=name;
+        };
+        void reset(){
+            okCounter.clear();
+            failCounter.clear();
+            globalFail=0;
+            globalOk=0;
+        }
+        void add(T key){
+            globalOk++;
+            auto it=okCounter.find(key);
+            if (it == okCounter.end()){
+                okCounter[key]=1;
+            }
+            else{
+                it->second++;
+            }
+        }
+        void addFail(T key){
+            globalFail++;
+            auto it=failCounter.find(key);
+            if (it == failCounter.end()){
+                failCounter[key]=1;
+            }
+            else{
+                it->second++;
+            }
+        }
+        int getJsonSize(){
+            return JSON_OBJECT_SIZE(4)+JSON_OBJECT_SIZE(okCounter.size()+1)+
+                JSON_OBJECT_SIZE(failCounter.size()+1);
+        }
+        void toJson(JsonDocument &json){
+            JsonObject jo=json.createNestedObject(name);
+            jo["sumOk"]=globalOk;
+            jo["sumFail"]=globalFail;
+            JsonObject jok=jo.createNestedObject("ok");
+            for (auto it=okCounter.begin();it!=okCounter.end();it++){
+                jok[String(it->first)]=it->second;
+            }
+            JsonObject jfail=jo.createNestedObject("fail");
+            for (auto it=failCounter.begin();it!=failCounter.end();it++){
+                jfail[String(it->first)]=it->second;
+            }
+        }
+};
+#endif