Add stub form for 'scan mult accounts' dialog

WinFormsDesigner/Dialogs/ScanAccountsDialog.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WinFormsDesigner.Dialogs
+{
+	public partial class ScanAccountsDialog : Form
+	{
+		public ScanAccountsDialog()
+		{
+			InitializeComponent();
+		}
+	}
+}