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

Source/Engine/Core/Config/BuildSettings.cs

@@ -0,0 +1,66 @@
+// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
+
+using System;
+using FlaxEngine;
+
+namespace FlaxEditor.Content.Settings
+{
+    partial class BuildSettings
+    {
+#if FLAX_EDITOR
+        /// <summary>
+        /// The build presets.
+        /// </summary>
+        [EditorOrder(5000), EditorDisplay("Presets", EditorDisplayAttribute.InlineStyle), Tooltip("Build presets configuration")]
+        public BuildPreset[] Presets =
+        {
+            new BuildPreset
+            {
+                Name = "Development",
+                Targets = new[]
+                {
+                    new BuildTarget
+                    {
+                        Name = "Windows 64bit",
+                        Output = "Output\\Win64",
+                        Platform = BuildPlatform.Windows64,
+                        Mode = BuildConfiguration.Development,
+                    },
+                }
+            },
+            new BuildPreset
+            {
+                Name = "Release",
+                Targets = new[]
+                {
+                    new BuildTarget
+                    {
+                        Name = "Windows 64bit",
+                        Output = "Output\\Win64",
+                        Platform = BuildPlatform.Windows64,
+                        Mode = BuildConfiguration.Release,
+                    },
+                }
+            },
+        };
+
+        /// <summary>
+        /// Gets the preset of the given name (ignore case search) or returns null if cannot find it.
+        /// </summary>
+        /// <param name="name">The preset name.</param>
+        /// <returns>Found preset or null if is missing.</returns>
+        public BuildPreset GetPreset(string name)
+        {
+            if (Presets != null)
+            {
+                for (int i = 0; i < Presets.Length; i++)
+                {
+                    if (string.Equals(Presets[i].Name, name, StringComparison.OrdinalIgnoreCase))
+                        return Presets[i];
+                }
+            }
+            return null;
+        }
+#endif
+    }
+}