Add metrika goals

source/_assets/common/metrika.js

@@ -1,9 +1,23 @@
 class Metrika {
+    constructor(counterCb) {
+        this.cb = counterCb;
+    }
+
+    get counter() {
+        return this.cb.call();
+    }
+
     hit(name) {
-        if (window.yaCounter41913764) {
-            window.yaCounter41913764.hit(name);
+        if (this.counter) {
+            this.counter.hit(name);
+        }
+    }
+
+    goal(name, params = {}) {
+        if (this.counter) {
+            this.counter.reachGoal(name, params);
         }
     }
 }
 
-export default new Metrika();
+export default new Metrika(() => window.yaCounter41913764);