Update menu item and class name (to pass katana)

com.unity.render-pipelines.high-definition/HDRP/Editor/Lighting/Volumetric/DensityVolumeTextureTool.cs

 using UnityEngine.Rendering;
 using UnityEngine.Experimental.Rendering.HDPipeline;
 
-namespace UnityEditor.Experimental.Rendering {
+namespace UnityEditor.Experimental.Rendering
+{
-    public class VolumeTextureTool : EditorWindow 
+    public class DensityVolumeTextureTool : EditorWindow 
     {
         private Texture2D sourceTexture = null;
         private string assetPath;
 
-        private static GUIContent windowTitle = new GUIContent("Create Volume Texture");
+        private static GUIContent windowTitle = new GUIContent("Create Density Volume Texture");
-        [MenuItem("Tools/HDRP Volumetric System/Create Volume Texture")]
+        [MenuItem("Window/Rendering/Density Volume Texture Tool")]
-            VolumeTextureTool window = (VolumeTextureTool)EditorWindow.GetWindow(typeof(VolumeTextureTool));
+            DensityVolumeTextureTool window = (DensityVolumeTextureTool)EditorWindow.GetWindow(typeof(DensityVolumeTextureTool));
             window.titleContent = windowTitle;
             window.Show();
         }