add fireEvent method to component API

src/g-component.html

@@ -250,6 +250,7 @@ license that can be found in the LICENSE file.
         // probably better to insert another link in the prototype chain
         p.utils = utils;
         p.setPropertySilently = setPropertySilently;
+        p.fireEvent = fireEvent;
         // install our prototype
         this.generatedConstructor.prototype = p;
       };
@@ -290,6 +291,11 @@ license that can be found in the LICENSE file.
         }
       };
 
+      var fireEvent = function(inType, inDetail) {
+        return this.dispatchEvent(new CustomEvent(inType,
+          {bubbles: true, detail: inDetail}));
+      };
+
       // collect utils
 
       var utils = {