* Added EdiUser Entity and DTO

* Added LoginService to handle login and user creation
* Extended DbContext
* Extended Mapper

SytelineSaAppEfDataModel/Services/ILoginService.cs

@@ -0,0 +1,10 @@
+using SytelineSaAppEfDataModel.Dtos;
+
+namespace SytelineSaAppEfDataModel.Services;
+
+public interface ILoginService
+{
+    Task<EdiUserDto> CreateUser(string userName, string password);
+    Task<bool> Login(string username, string password);
+    
+}