Add convert project folder option

ScriptableRenderPipeline/Core/Editor/MaterialUpgrader.cs

                     if (UnityEditor.EditorUtility.DisplayCancelableProgressBar(progressBarName, string.Format("({0} of {1}) {2}", materialIndex, totalMaterialCount, path), (float)materialIndex / (float)totalMaterialCount))
                         break;
 
-                    Material m = UnityEditor.AssetDatabase.LoadMainAssetAtPath(path) as Material;
-                    Upgrade_SS(m, upgraders, flags);
-
-                    //SaveAssetsAndFreeMemory();
+                    Material material = UnityEditor.AssetDatabase.LoadMainAssetAtPath(path) as Material;
+                    Upgrade(material, upgraders, flags);
-
-        public static void Upgrade_SS(Material material, List<MaterialUpgrader> upgraders, UpgradeFlags flags)
-        {
-        }
-
 
         public static void Upgrade(Material material, MaterialUpgrader upgrader, UpgradeFlags flags)
         {

ScriptableRenderPipeline/HDRenderPipeline/Editor/UpgradeStandardShaderMaterials.cs

             return upgraders;
         }
 
-/*
+
-            MaterialUpgrader.UpgradeProjectFolder_SS(GetHDUpgraders(), "Upgrade to HD Material");
+            MaterialUpgrader.UpgradeProjectFolder_SS(GetHDUpgraders_SS(), "Upgrade to HD Material");
-*/
+
 
         [MenuItem("RenderPipeline/HDRenderPipeline/Material Upgraders/Upgrade Standard Materials to Lit Materials (SS) - Selection", false, 2)]
         static void UpgradeMaterialsSelection_SS()