Removed unused legacy function `placeItemInInventoryLegacy()`
Dont return stash layout as result in `fillContainerMapWithItem()`
Added small optimisation to `fillContainerMapWithItem()`, check if all slots of failled before trying to fit item
Also allow money from sold flea offers to enter sorting table
Remove unused addItem() from InventoryController
Add optional param to inventoryHelper.addItem() to allow use of sorting table, default = off