feat(Transition): Added getResolvable(token) method

Author: christopherthielen

src/transition/transition.ts

@@ -246,6 +246,19 @@ export class Transition implements IHookRegistry {
     return getData(token);
   }
 
+  /**
+   * Gets a [[Resolvable]] primitive
+   *
+   * This is a lower level API that returns a [[Resolvable]] from the Transition for a given token.
+   *
+   * @param token the DI token
+   *
+   * @returns the [[Resolvable]] in the transition's to path, or undefined
+   */
+  getResolvable(token: any): Resolvable {
+    return new ResolveContext(this._treeChanges.to).getResolvable(token);
+  }
+
   /**
    * Dynamically adds a new [[Resolvable]] (`resolve`) to this transition.
    *