Add pithos in room 38

[atomrab]

One way to understand the pit in room 38 during the first phase is to assume that it was meant to house a large pithos, which was removed during the second phase of use. I think we can safely reconstruct this in the first phase (if we get to the second phase, we can just leave the pit open).

[atomrab]

Actually, looking again at the photos of this pit, I think we're probably dealing with two smaller pithoi set side by side. The photos show that the pit looks at bit like a kidney bean, with two lobes and a narrowing in the center -- that probably reflects two separate vessels.