Add toggle orthographic view hotkey

Adds the Toggle Orthographic hotkey to the editor. Bound to 'NumpadDecimal' by default.

Source/Editor/Options/InputOptions.cs

@@ -320,6 +320,10 @@ namespace FlaxEditor.Options
         [EditorDisplay("Viewport"), EditorOrder(1750)]
         public InputBinding ViewpointBottom = new InputBinding(KeyboardKeys.Numpad2);
 
+        [DefaultValue(typeof(InputBinding), "NumpadDecimal")]
+        [EditorDisplay("Viewport"), EditorOrder(1760)]
+        public InputBinding ToggleOrthographic = new InputBinding(KeyboardKeys.NumpadDecimal);
+
         #endregion
 
         #region Interface

Source/Editor/Viewport/EditorViewport.cs

@@ -998,6 +998,7 @@ namespace FlaxEditor.Viewport
             InputActions.Add(options => options.CameraToggleRotation, () => _isVirtualMouseRightDown = !_isVirtualMouseRightDown);
             InputActions.Add(options => options.CameraIncreaseMoveSpeed, () => AdjustCameraMoveSpeed(1));
             InputActions.Add(options => options.CameraDecreaseMoveSpeed, () => AdjustCameraMoveSpeed(-1));
+            InputActions.Add(options => options.ToggleOrthographic, () => OnOrthographicModeToggled(null));
 
             // Link for task event
             task.Begin += OnRenderBegin;