Comment 1 for bug 1777675

I've pushed up a branch here: http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/khuckins/lp1777675-inventory-date-support

We've added the two new fields, inventory_date and inventory_workstation, and added information necessary for the API. The checkin API handles updating the new fields when the checkbox added to the checkin interface is activated.