Repositories inserted and new page for accounts inserted

WinFormDi.BLI/IAccountRecordRepository.cs

@@ -0,0 +1,11 @@
+using WinFormDiApp.BL.Models;
+
+namespace WinFormDiApp.BLI
+{
+    public interface IAccountRecordRepository
+    {
+        bool AddAccountRecord(AccountRecord record);
+        bool DeleteAccountRecord(AccountRecord record);
+        IEnumerable<AccountRecord> GetAllAccounts();
+    }
+}