Implemented Ground Guam as a tar recipe

What has been done in this MR?

• Close #1018 (closed)

What should testers check?

• Check you can still grind clean guam (249) into ground guam (6681)
• Check you can make guam tar from swamp tar (1939) using clean guam or ground guam.
• Check you need a pestle and mortar (233) to do any of these things
• Check you can make marrentill tar (251)
• Check Tarromin tar (253)
• Check Harralander tar (255)

• I have tested these changes thoroughly.

• I used the relevant Zaros tool for any JSON edits where possible, and have attached screenshots of any changes.