Suggestion: Tag Filtering

[Awsome-Creeper9]

I think it would be nice if we could filter items based on item tags supplied by (neo)forge, Minecraft, and mods.

For example:

output #flowers to flowers
-- Queries all items with the tag "flowers" and outputs them, rather than listing each one separately
output "#.*wood.*" to woodStuffs
-- Queries all items that have a tag that includes the string "wood"