Make the Apiarist's Pipe sort larvae

[agroschim]

I am not sure how many people actually use the Apiarist's Pipe, but I found it to be quite usefull when automating Bees with BuildCraft. However it bugs me that it is unable to sort larvae.

[Alex Binnie]

Both the apiarist pipe and larvae are in Forestry itself, so that would need to be fixed here: https://github.com/ForestryMC/ForestryMC/issues