Fix deco controller rotation & display

[uecasm]

Closes discord request

Changes proposed in this pull request

• Make decoration controllers use the same "refer to blueprint" method as huts to determine relative rotation (fixes rotation bugs if not scanned at 0 rotation).
• Removes some redundant NBT values from decoration controllers.
• Adjusts deco controller UI to make blueprint path more readable.

Testing

• Yes I tested this before submitting it.
• I also did a multiplayer test.

Review please (probably port)

One alternative to this would be to just set the stored rotation to 0 on scan, but that's actually harder to arrange since there isn't a good hook in Structurize that isn't called at other times. And this avoids having to re-scan existing blueprints.