First implementation of debug items UI in editor.

Assets/ScriptableRenderPipeline/common/Debugging/DebugMenu.cs

     public class DebugMenu
     {
         public string name { get { return m_Name; } }
+        public int itemCount { get { return m_Items.Count; } }
 
         protected string m_Name = "Unknown Debug Menu";
 
         private int m_SelectedItem = -1;
+
+        public DebugMenuItem GetDebugMenuItem(int index)
+        {
+            if (index >= m_Items.Count || index < 0)
+                return null;
+            return m_Items[index];
+        }
 
         // TODO: Move this to UI classes
         public GameObject BuildGUI(GameObject parent)
             menuVLRectTransform.anchorMax = new Vector2(1.0f, 1.0f);
 
             DebugMenuUI.CreateTextDebugElement(string.Format("{0} Title", m_Name), m_Name, 14, TextAnchor.MiddleLeft, m_Root);
-
             
             m_ItemsUI.Clear();
             foreach(DebugMenuItem menuItem in m_Items)

Assets/ScriptableRenderPipeline/common/Debugging/Editor/DebugMenuEditor.cs

             m_DebugMenu = DebugMenuManager.instance;
         }
 
+        void DrawBoolItem(DebugMenuItem item)
+        {
+            EditorGUI.BeginChangeCheck();
+            bool value = EditorGUILayout.Toggle(item.name, (bool)item.GetValue());
+            if(EditorGUI.EndChangeCheck())
+            {
+                item.SetValue(value);
+            }
+        }
+
+        void DrawFloatItem(DebugMenuItem item)
+        {
+            EditorGUI.BeginChangeCheck();
+            float value = EditorGUILayout.FloatField(item.name, (float)item.GetValue());
+            if (EditorGUI.EndChangeCheck())
+            {
+                item.SetValue(value);
+            }
+        }
+
+        void OnMenuItemGUI(DebugMenuItem item)
+        {
+            if(item.GetItemType() == typeof(bool))
+            {
+                DrawBoolItem(item);
+            }
+            else if(item.GetItemType() == typeof(float))
+            {
+                DrawFloatItem(item);
+            }
+        }
+
         void OnGUI()
         {
             if (m_DebugMenu == null)
+            EditorGUI.BeginChangeCheck();
             int debugMenuCount = m_DebugMenu.menuCount;
             int activeMenuIndex = m_DebugMenu.activeMenuIndex;
             using (new EditorGUILayout.HorizontalScope())
                         activeMenuIndex = i;
                 }
             }
-
-            m_DebugMenu.activeMenuIndex = activeMenuIndex;
+            if(EditorGUI.EndChangeCheck())
+            {
+                m_DebugMenu.activeMenuIndex = activeMenuIndex;
+            }
+           
+            using(new EditorGUILayout.VerticalScope())
+            {
+                DebugMenu activeMenu = m_DebugMenu.GetDebugMenu(m_DebugMenu.activeMenuIndex);
+                for (int i = 0; i < activeMenu.itemCount; ++i)
+                {
+                    OnMenuItemGUI(activeMenu.GetDebugMenuItem(i));
+                }
+            }
         }
     }