109526520: Implement verify flow

When a person registers with a valid mobile number and email address,
a code will be sent to each. That person can enter the verify codes and continue to the add-service page.

app/main/views/register.py

@@ -36,6 +36,7 @@ def process_register():
             session['email_code'] = hashpw(email_code)
             session['expiry_date'] = str(datetime.now() + timedelta(hours=1))
             users_dao.insert_user(user)
+            session['user_id'] = user.id
         except AdminApiClientException as e:
             return jsonify(admin_api_client_error=e.value)
         except SQLAlchemyError: