Detect MacCatalyst platform.

Emgu.CV/PInvoke/CvInvoke.cs

@@ -450,7 +450,8 @@ namespace Emgu.CV
 #if ( UNITY_WEBGL && ! UNITY_EDITOR )
             _libraryLoaded = true;
 #else
-            if (Emgu.Util.Platform.OperationSystem == Emgu.Util.Platform.OS.IOS)
+            if (Emgu.Util.Platform.OperationSystem == Emgu.Util.Platform.OS.IOS ||
+                Emgu.Util.Platform.OperationSystem == Emgu.Util.Platform.OS.MacCatalyst)
             {
                 /*
                 Assembly assembly = Assembly.GetExecutingAssembly();
@@ -468,7 +469,7 @@ namespace Emgu.CV
                     };
                 */
 
-                //For iOS, library are static linked, assume correct loading by default.
+                //iOS or MacCatalyst libraries are static linked, assume correct loading by default.
                 _libraryLoaded = true;
                 return;
             }

Emgu.Util/Platform.cs

@@ -42,24 +42,30 @@ namespace Emgu.Util
                 _os = OS.Android;
                 _runtime = Clr.Mono;
             }
-            else if (Emgu.Util.Toolbox.FindAssembly("Microsoft.Android.dll") != null)
-            {
-                //MAUI Android
-                _os = OS.Android;
-                _runtime = Clr.DotNet;
-            }
             else if (Emgu.Util.Toolbox.FindAssembly("Xamarin.iOS.dll") != null)
             {   
                 //Xamarin iOS
                 _os = OS.IOS;
                 _runtime = Clr.Mono;
             }
+            else if (Emgu.Util.Toolbox.FindAssembly("Microsoft.Android.dll") != null)
+            {
+                //MAUI Android
+                _os = OS.Android;
+                _runtime = Clr.DotNet;
+            }
             else if (Emgu.Util.Toolbox.FindAssembly("Microsoft.iOS.dll") != null)
             {
                 //MAUI iOS
                 _os = OS.IOS;
                 _runtime = Clr.DotNet;
             }
+            else if (Emgu.Util.Toolbox.FindAssembly("Microsoft.MacCatalyst.dll") != null)
+            {
+                //MAUI MacCatalyst
+                _os = OS.MacCatalyst;
+                _runtime = Clr.DotNet;
+            }
             else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
             {
                 _os = OS.MacOS;
@@ -114,6 +120,10 @@ namespace Emgu.Util
             /// </summary>
             MacOS,
             /// <summary>
+            /// Mac Catalyst. IPad app running on Mac OS.
+            /// </summary>
+            MacCatalyst,
+            /// <summary>
             /// iOS devices. iPhone, iPad, iPod Touch
             /// </summary>
             IOS,