Add automatic backup, add program settings editor

NHSE.WinForms/Subforms/Program/SettingsEditor.cs

@@ -0,0 +1,28 @@
+using System.Windows.Forms;
+using NHSE.WinForms.Properties;
+
+namespace NHSE.WinForms
+{
+    public partial class SettingsEditor : Form
+    {
+        private readonly Settings obj;
+
+        public SettingsEditor()
+        {
+            obj = Settings.Default;
+            InitializeComponent();
+            PG_Settings.SelectedObject = obj;
+        }
+
+        private void SettingsEditor_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            obj.Save();
+        }
+
+        private void SettingsEditor_KeyDown(object sender, KeyEventArgs e)
+        {
+            if (e.KeyCode == Keys.W && ModifierKeys == Keys.Control)
+                Close();
+        }
+    }
+}