make email address required for token generation and user registration.

External/Interfaces/IUserRecordDataAccess.cs

@@ -6,6 +6,7 @@ namespace CarCareTracker.External.Interfaces
     {
         public List<UserData> GetUsers();
         public UserData GetUserRecordByUserName(string userName);
+        public UserData GetUserRecordByEmailAddress(string emailAddress);
         public UserData GetUserRecordById(int userId);
         public bool SaveUserRecord(UserData userRecord);
         public bool DeleteUserRecord(int userId);