Add an example with normal Play routes & Yeoman routes

[milliondreams]

Updated the example to demonstrate regular play routes living happily with the yeoman routes.

Checkout this commit - https://github.com/tuplejump/play-yeoman/commit/c1959f298f5f5f6620910d0d1f9f13033e168266

Hope that answers the query! Reopen with more details if it doesnt.