feat(AvgRTPStatsReporter): add samples

Will also log samples next to the average value for debugging purposes.

modules/statistics/AvgRTPStatsReporter.js

         this.name = name;
         this.count = 0;
         this.sum = 0;
+        this.samples = [];
     }
 
     /**
                 nextValue);
         } else if (!isNaN(nextValue)) {
             this.sum += nextValue;
+            this.samples.push(nextValue);
             this.count += 1;
         }
     }
     report(isP2P) {
         Statistics.analytics.sendEvent(
             `${isP2P ? 'p2p.' : ''}${this.name}`,
-            { value: this.calculate() });
+            {
+                value: this.calculate(),
+                samples: this.samples
+            });
     }
 
     /**
      * calculated using this instance.
      */
     reset() {
+        this.samples = [];
         this.sum = 0;
         this.count = 0;
     }