调整 Event 和 Editor 命名空间

- 将原来的 CustomEvent 调整到 SepCore.Event
- 将 Editor 文件夹下的统一到 SepCore.Editor，顺带修改了 Editor 程序集

Assets/GameMain/Scripts/Editor/SceneSwitchLeft.cs

@@ -3,50 +3,56 @@ using UnityEditor.SceneManagement;
 using UnityEngine;
 using System.IO;
 
-[InitializeOnLoad]
-public class SceneSwitchLeft
+namespace SepCore.Editor
 {
-    static SceneSwitchLeft()
+    [InitializeOnLoad]
+    public class SceneSwitchLeft
     {
-        // 注册到全局工具栏绘制事件
-        SceneView.duringSceneGui += OnSceneGUI;
-    }
-
-    static void OnSceneGUI(SceneView sceneView)
-    {
-        // 在 Scene 视图的左上角绘制一个下拉菜单
-        Handles.BeginGUI();
-        
-        GUILayout.BeginArea(new Rect(10, 10, 200, 100));
-        if (EditorGUILayout.DropdownButton(new GUIContent("快速切换场景"), FocusType.Passive, EditorStyles.toolbarDropDown))
+        static SceneSwitchLeft()
         {
-            ShowSceneMenu();
+            // 注册到全局工具栏绘制事件
+            SceneView.duringSceneGui += OnSceneGUI;
         }
-        GUILayout.EndArea();
 
-        Handles.EndGUI();
-    }
-
-    static void ShowSceneMenu()
-    {
-        GenericMenu menu = new GenericMenu();
-
-        // 查找项目中所有启用（Enabled）的场景
-        string[] sceneGuids = AssetDatabase.FindAssets("t:Scene");
-        
-        foreach (string guid in sceneGuids)
+        static void OnSceneGUI(SceneView sceneView)
         {
-            string path = AssetDatabase.GUIDToAssetPath(guid);
-            string name = Path.GetFileNameWithoutExtension(path);
+            // 在 Scene 视图的左上角绘制一个下拉菜单
+            Handles.BeginGUI();
 
-            menu.AddItem(new GUIContent(name), false, () => {
-                if (EditorSceneManager.SaveCurrentModifiedScenesIfUserWantsTo())
+            GUILayout.BeginArea(new Rect(10, 10, 200, 100));
+            if (EditorGUILayout.DropdownButton(new GUIContent("快速切换场景"), FocusType.Passive,
+                    EditorStyles.toolbarDropDown))
+            {
+                ShowSceneMenu();
+            }
+
+            GUILayout.EndArea();
+
+            Handles.EndGUI();
+        }
+
+        static void ShowSceneMenu()
+        {
+            GenericMenu menu = new GenericMenu();
+
+            // 查找项目中所有启用（Enabled）的场景
+            string[] sceneGuids = AssetDatabase.FindAssets("t:Scene");
+
+            foreach (string guid in sceneGuids)
+            {
+                string path = AssetDatabase.GUIDToAssetPath(guid);
+                string name = Path.GetFileNameWithoutExtension(path);
+
+                menu.AddItem(new GUIContent(name), false, () =>
                 {
-                    EditorSceneManager.OpenScene(path);
-                }
-            });
-        }
+                    if (EditorSceneManager.SaveCurrentModifiedScenesIfUserWantsTo())
+                    {
+                        EditorSceneManager.OpenScene(path);
+                    }
+                });
+            }
 
-        menu.ShowAsContext();
+            menu.ShowAsContext();
+        }
     }
-}
+}