CRAFTBOOK-3122 - Reported by skittishtrigger

Many commands and additions in Craftbook use item_ids. for those that use limited space such as signs I have a scenario that others may find useful. i.e.: When using pipes the third & fourth lines denote item ids that are comma delineated. I am suggesting adding an option such as 1,4,35:*(or some other such usable symbol) where all items stone, cobblestone, and all wool colors would be filtered. anything that uses item id's like that I think would benefit greatly from and also allow smaller foot prints to save on server resources.