int ARG1: The name of the stock ship to add.

Adds a stock ship to the build inventory panel. If the panel is full, nothing is added. The names of stock ships are:
“LATHE”, “DESTROYER”, “JOVEN”, “CRUISER”, “MICROTANK”, “TANKER”, “GRABBER”, “HAMMER”, “WOLF”, “MARAUDER”, “DISCHARGER”, “BIGNOSE”, “CCLASS”, “CARRIER”, “VARRO”, “HQ”

TODO