feat(pipe): added the Pipe decorator and the pipe property to View

BREAKING CHANGE:
    Instead of configuring pipes via a Pipes object, now you can configure them by providing the pipes property to the View decorator.

    @Pipe({
      name: 'double'
    })
    class DoublePipe {
      transform(value, args) { return value * 2; }
    }

    @View({
      template: '{{ 10 | double}}'
      pipes: [DoublePipe]
    })
    class CustomComponent {}

Closes #3572

modules/angular2/src/util/decorators.ts

@@ -268,6 +268,7 @@ export function makeParamDecorator(annotationCls): any {
       return ParamDecorator;
     }
 
+
     function ParamDecorator(cls, unusedKey, index): any {
       var parameters: Array<Array<any>> = Reflect.getMetadata('parameters', cls);
       parameters = parameters || [];