Add support for accessing Game Settings and related assets in C# API in game build

Source/Engine/Physics/PhysicsSettings.cs

@@ -0,0 +1,28 @@
+// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
+
+using FlaxEngine;
+
+namespace FlaxEditor.Content.Settings
+{
+    partial class PhysicsSettings
+    {
+        /// <summary>
+        /// The collision layers masks. Used to define layer-based collision detection.
+        /// </summary>
+#if FLAX_EDITOR
+        [EditorOrder(1040), EditorDisplay("Layers Matrix"), CustomEditor(typeof(CustomEditors.Dedicated.LayersMatrixEditor))]
+#endif
+        public uint[] LayerMasks = new uint[32];
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PhysicsSettings"/> class.
+        /// </summary>
+        public PhysicsSettings()
+        {
+            for (int i = 0; i < 32; i++)
+            {
+                LayerMasks[i] = uint.MaxValue;
+            }
+        }
+    }
+}