add version tag

MainForm.cs

@@ -14,6 +14,8 @@ namespace robospot_camera_finder
 {
     public partial class MainForm : Form
     {
+        public string VERSION = "1.0.0";
+
         private BindingList<Camera> all_cameras = new();
 
         public static string cam_username = "admin";
@@ -98,6 +100,8 @@ namespace robospot_camera_finder
         {
             InitializeComponent();
 
+            this.Text += " - " + VERSION;
+
             bool got_proper_ip = false;
             foreach (var net_interface in NetworkInterface.GetAllNetworkInterfaces())
             {