fix(animations): properly cache renderer and namespace triggers (#14703)

- Don’t use the animation renderer if a component
  used style encapsulation but no animations.
- The `AnimationRenderer` should be cached in the same
  lifecycle as its delegate.
- Trigger names need to be namespaced per component type.

modules/@angular/core/src/render/api.ts

@@ -123,7 +123,7 @@ export interface RendererTypeV2 {
   id: string;
   encapsulation: ViewEncapsulation;
   styles: (string|any[])[];
-  data: {[kind: string]: any[]};
+  data: {[kind: string]: any};
 }
 
 /**
@@ -137,6 +137,12 @@ export abstract class RendererFactoryV2 {
  * @experimental
  */
 export abstract class RendererV2 {
+  /**
+   * This field can be used to store arbitrary data on this renderer instance.
+   * This is useful for renderers that delegate to other renderers.
+   */
+  abstract get data(): {[key: string]: any};
+
   abstract destroy(): void;
   abstract createElement(name: string, namespace?: string): any;
   abstract createComment(value: string): any;