Creating full doctor profile with name(first/last), address, and phone

* Upating user_params for new user fields
* Creating edit, update, and show controller actions
* Creating edit and show pages for user
* Modifying new user view form to include first and last name fields
* Adding :edit, :update to user routes
* Adjusting create_user migration
Creating full_name method for User and calling it in user show page

* Alphabetizing user fields in user_params method
Merge pull request #3 from Psychologist-Today/create_doc_profile

Creating full doctor profile with name(first/last), address, and phone