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/Runtime/CustomComponent/DebugPanel/RuntimeDebugPanelComponent.cs

@@ -2,7 +2,7 @@
 using System;
 using System.Linq;
 using Components;
-using CustomEvent;
+using SepCore.Event;
 using SepCore.DataTable;
 using SepCore.Definition;
 using Entity;

Assets/GameMain/Scripts/Runtime/CustomComponent/Simulation/Jobs/SimulationWorld.CollisionPresentation.cs

@@ -1,4 +1,4 @@
-using CustomEvent;
+using SepCore.Event;
 using SepCore.Definition;
 using Entity;
 using Entity.Weapon;

Assets/GameMain/Scripts/Runtime/CustomComponent/Simulation/Presentation/SimulationWorld.HitPresentation.cs

@@ -1,4 +1,4 @@
-using CustomEvent;
+using SepCore.Event;
 using Entity;
 using Entity.EntityData;
 using Entity.Weapon;