Changed naming from Routes to Controllers; fixed some Sinatra modular layout stuff; added RSpec for testing and some basic tests

src/controllers/base_controller.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+require 'sinatra/base'
+
+# BaseController - base modular Sinatra app class
+class BaseController < Sinatra::Base
+
+  # Register view helpers
+  require_relative '../helpers'
+  helpers Helpers
+
+  # Set up our view engine
+  set :views, File.join(settings.root, '/../../views')
+
+end