Allow more items through Kocatan gate

Raised allowed items from 2 weapons and 1 helm/gaunts/shield/armor to 4 weapons and 2 of the others. Also made it so soldier shields and masks don't count towards the total.

People were already taking extra items through, but just dropping them and taking the allowed number through at a time (multiple trips), so this just removes the annoyance factor while leaving an interesting dialogue in the game.