Redirect after signup

The original purpose of this branch was to implement the code that would redirect the Parent to a form to register a child(ren) and sign them up to a camp. The approach was to initially redirect them to a form to sign up a child/player as the full data model is not yet implemented.

In progress:
* Create the new.html.erb form
* Create a method in application_controller.rb to redirect the Parent on sign in. 
* Initial models and tests for parent, player, coach, camp, campSession, standard, location completed.
* Initial methods for players_controller coded