update hasMod to include Backup Mag
update hasMod to include Backup Mag

Backup Mag (InventoryItem:3336648220)
uses the plugCategoryIdentifier "v400.weapon.mod_magazine"

this updates hasMod to return true for weapons with Backup Mag
bhollis/DIM,DestinyItemManager/DIM,delphiactual/DIM,delphiactual/DIM,delphiactual/DIM,DestinyItemManager/DIM,delphiactual/DIM,bhollis/DIM,bhollis/DIM,bhollis/DIM,DestinyItemManager/DIM,DestinyItemManager/DIM