Allow chaining of reserved JavaScript words from controllers

[joetannenbaum]

This PR adds the ability to still chain the original method name from the controller even if it's a reserved word in JavaScript. For example:

import PostController, { deleteMethod } from "@actions/App/Http/Controllers/PostController";

// Changed to `deleteMethod` beacuse `delete` is a reserved keyword in TypeScript
deleteMethod();

// Original method chained off of the controller (but you lose tree-shaking)
PostController.delete();