AssetModificationProcessor は、シリアライズされたアセットとUnity内で編集されたシーンの保存処理をフックすることができます。
        This lets you prevent writing of assets by Unity for integration with VCS
      solutions like Perforce which require locking of files.
      This can be used as a callback to know when Assets are saved.  You can then make
      actions such as run code generator.
      
      
| CanOpenForEdit | This is called by Unity when inspecting assets to determine if they can potentially be opened for editing. | 
| FileModeChanged | Unity calls this method when file mode has been changed for one or more files. | 
| IsOpenForEdit | This is called by Unity when inspecting assets to determine if an editor should be disabled. | 
| MakeEditable | Unity calls this method when one or more files need to be opened for editing. | 
| OnWillCreateAsset | Unity calls this method when it is about to create an Asset you haven't imported (for example, .meta files). | 
| OnWillDeleteAsset | ディスクからアセットを削除しようとしているときに呼び出されます。 | 
| OnWillMoveAsset | Unity calls this method when it is about to move an Asset on disk. | 
| OnWillSaveAssets | This is called by Unity when it is about to write serialized assets or Scene files to disk. |