WIP:Creating template for a main application module

- Need to figure out the best way to expose the name App globally so that
  it can be used by modules
  References
  https://github.com/marionettejs/bbclonemail/
  https://github.com/davidsulc/structuring-backbone-with-requirejs-and-marionette
Added Starter file for a Marionette app
Added templates for module definition
WIP: Setup boilerplate Marionette module loading using requirejs

- Need to confirm how all dependencies of all modules are loaded so that
  when initialize runs, the return from require is instantaneous.