Add an editor utility and fix issue with slot items

Assets/Data/Puzzles/Quarry/Quarry.asset

@@ -17,10 +17,6 @@ MonoBehaviour:
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@@ -31,7 +27,5 @@ MonoBehaviour:
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   - {fileID: 11400000, guid: ea383d1dee861f54c9a1d4f32a2f6afc, type: 2}

Assets/Data/Puzzles/Testing.meta

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Assets/Data/Puzzles/Testing/Testing.asset

@@ -0,0 +1,24 @@
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+  m_Script: {fileID: 11500000, guid: 0a79780a5a0d498084afd737d4515e3b, type: 3}
+  m_Name: Testing
+  m_EditorClassIdentifier: AppleHillsScripts::PuzzleS.PuzzleLevelDataSO
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+  displayName: Testing
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Assets/Data/Puzzles/Testing/Testing.asset.meta

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