As suggested in #215 by @vacante it is necessary to be able to copy over Block States such as Player Head metadata, to be able to effectively use it for certain building tasks.
Proposed way of doing this would be to have a dedicated Block Utility class to reduce the amount of changes we have to make and since Bukkit does not have a standardized way of copying Blocks from one place to another. (Potential Enhancement via PR on Bukkit maybe?)