add an editor script file which hide password on the inspector view.
fixed to be compatible with GoogleDataSettingsEditor.cs
Changed not to derived BaseDatabase.
Removed redundant file.
Removed redundant file.
Moved CustomAssetUtility.cs to Editor/Util from Script/Util to make it work when it is built. CustomAssetUtility.cs contains UnityEditor script and should be under any Editor folder.
Added missing .meta file.
Added Test scene