Changes to Pick List

added the required property items/lines/items/kind to the response with the 200 status

added the required property items/lines/items/packed_count to the response with the 200 status

added the required property items/lines/items/quantity to the response with the 200 status

added the required property items/lines/items/units to the response with the 200 status

added the required property items/on_order to the response with the 200 status

added the optional property items/lines/items/candidates/items/cost_source to the response with the 200 status

added the optional property items/lines/items/unit/anyOf[subschema #1: StockUnitSchema]/cost_source to the response with the 200 status

endpoint added