Add Bagged Pure Meth To Drugs That Can Be Sniffed

Adding the bagged pure meth item to the list of items that K9s can detect.

Adding this will allow more roleplay between police and civilians selling drugs (bagged pure meth). Currently, the item cannot be detected by K9s, unless you need a very big amount. I tried it with 20 bags of it and the K9s were unable to detect it.