Added new API for getting Member (aka Users but for use in FE). User is just used for login/registering.

API/Interfaces/IUserRepository.cs

@@ -0,0 +1,19 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using API.DTOs;
+using API.Entities;
+
+namespace API.Interfaces
+{
+    public interface IUserRepository
+    {
+        void Update(AppUser user);
+        Task<bool> SaveAllAsync();
+        Task<IEnumerable<AppUser>> GetUsersAsync();
+        Task<AppUser> GetUserByIdAsync(int id);
+        Task<AppUser> GetUserByUsernameAsync(string username);
+        Task<IEnumerable<MemberDto>>  GetMembersAsync();
+        Task<MemberDto> GetMemberAsync(string username);
+    }
+}