Added method signatures inside abstract interfaces in Shared.interfaces

vs/LO23/Shared/interfaces/Interface_Comm_calls_Data_Server.cs

@@ -3,13 +3,17 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using Shared.data;
 
 
 namespace Shared.interfaces
 {
     public interface Interface_Comm_calls_Data_Server
     {
-        
+        LightUser getUser();
+        List<LightUser> registerUser(LightUser lightUser);
+        void removeUser(int idJoueur);
+
     }
 }