Driver App Page Layouts Implemented

[RyanDotsikas]

Now that the mockups have been created for all of the pages in the driver android app, the layouts need to be put together in Android Studio. This process is helped along by Android Studio's ability to drag and drop items such as text boxes and buttons. All aspects from the mockups seen in Issue #19 should be incorporated into different .xml layout files. All default values shown on buttons and in text fields should be set up with the associated string variables. There is a fair amount of overlap with shared pages for the driver and passenger apps (such as login, etc) that can be implemented identically in both apps.

Note: a separate issue exists for hooking up all connectivity of the layout: Issue #26