Added dashboard view and nav tabs
Added front end for sending signature requests and button to trigger a signature_request event.  added document template database table and added document_template_id to signature_request table.
Added new document template form in modal for dashboard
Dashboard now shows all documents owned by the current user.  Creating a new document template now saves and re-renders the page
Sending document modal now works! Can now create templates and send them through the employee show page