Adds `ResourceControllerInterface` - Includes basic RESTful methods
BaseApiController - Adds/Modifies methods
    - Makes `$data` optional `respondOk(array $data = [], $status = Response::HTTP_OK)`
    - Adds method `BaseApiController@setMessage($message)`
    - Adds methods
        - `addData($key, $value)`
        - `addPaginationInfo($page, $total, $next = null, $prev = null)`
Routes - Updates '/users' resource routes to use UsersController

UsersController implements ResourceControllerInterface
    - Extracts DummyUsers

Most methods have dummy implementations.
Playing around with how to format responses.... my current thoughts
- The dilemma ... to use a root object or not to use a root object.....
    - I'm thinking... yes. This allows for passing extra data such as "message", "errors", etc...
    - Might make more sense..... @kchunterdeluxe thoughts?