Utility methods to pack atlases in the Project.
| CleanupAtlasPacking | Cleanup internal states after packing SpriteAtlas assets. Must be called after a call to SpriteAtlasUtility.PackAllAtlases. |
| PackAllAtlases | Pack all the SpriteAtlas Assets in the Project for the particular BuildTarget. |
| PackAtlases | Pack all the provided SpriteAtlas for the particular BuildTarget. |