Merge branch 'ItemStackingLimits' into 'master'

Item stacking limits

Alchemist golems will no longer equip entire stacks of gems in their gem slots.
When buying part of a stack of objects from a store, the log will correctly show the number purchased.
Dropping a partial stack of objects will drop a new stack rather than individual objects.
When picking up an object, the correct item will be shown as newly picked up in the inventory dialog.
Fixed a rare bug when transferring items if the recipient inventory was full.

* Adds support for an inventory-specific stack_limit parameter when defining an inventory. (in .infos or actor.body table.)
The changes are backward compatible and the new stack_limit is dynamically changeable.

This affects addObject, removeObject, sortInven, wearObject, pickupFloor, dropFloor,
Improves object stacking functions to handle a specified number to unstack/stack.
Fixed a bug in itemPosition so that it will correctly search stacked objects and returns the stack position.  Can search by reference.
The actor/object checks in pickupFloor are now passed the number of stacked objects picked up to allow them to work correctly on partial

stacks.
Extended inventory definition support to initialize with a table to values.
Fixed a bug when inspecting actor inventories in debug mode.