[Fix] Subroutine should now be deconstructible (I hope)

- Added further research if you have found and studied both Subcore and Subroutine anomalies
- Fixed a bug which allowed anomalies to spawn in ancient dangers (Moved items from Artifact category into Misc items)
- Puzzle now has a new sprite (Made by Hyou)

[Fix] Certain hediffs no longer send meaningless letters when entering a new phase

Added the pebble anomaly (+It's consequences)
Fixed an exploit which allowed unlimited organ harvesting from "Connected" pawns

Fixed some stuff

Added the Clay figure anomaly

Fixed the preview image

Added the Subcore anomaly

Added the puzzle anomaly

Fixed Key's disability to open beer