Auto-Empty Barns/Pastures

[BlackOak2]

I'm sure I remember something like this suggested before, but I didn't find it. So, here we go again.

Be really nice to auto-empty barns and pastures when they return to inventory, rather than going through and emptying out each one by hand and by every single item separately.

I'm sure this could be an inventory issue (not having space available), but it would certainly be a handy thing to have. Definitely not a need.