Rubble art for some buildings

[temple]

As mentioned in ​Phab:D643, there are a few buildings that need rubble art:

Civic Center: Gaul, Ptolemy, Seleucid

Dock: Maurya, Ptolemy, Seleucid

Stone 2x4 (see r12985, perhaps the 4x2 can be rotated)

Palisades

[Stan]

That's in the art task thread. I don't think Artists come by track often so I'd suggest you comment on that thread with that ticket link :)