Added new fabirc pbr mode;

Added new stocking surface feature;

Fixed the issue that diffuse bsdf is not energy conserving.
Fixed the bug that shader can not render alpha clip properly;

Editor/MeterialEditor/UIScopes/StockingScope.cs

@@ -0,0 +1,22 @@
+using Misaki.ShaderGUI;
+using UnityEngine;
+
+namespace Misaki.HdrpToon.Editor
+{
+    public class StockingScope : MaterialUIScope<ShaderGUIExpandable>
+    {
+        protected override ShaderGUIExpandable ExpandableBit => ShaderGUIExpandable.Stocking;
+
+        protected override GUIContent Header => throw new System.NotImplementedException();
+
+        public override void LoadMaterialProperties()
+        {
+            throw new System.NotImplementedException();
+        }
+
+        protected override void DrawContent()
+        {
+            throw new System.NotImplementedException();
+        }
+    }
+}