Infuser Does Not Accept Valid Inputs

[airbreather]

Tested with both forestry_1.7.10-3.5.3.11.jar and a local gradle build of the latest source at the time of writing (784a47b).

Steps to reproduce:

• Start a new creative world.
• Add an Infuser, Pollen Cluster, Crystalline Pollen Cluster, and Short Mead to the player's inventory.
• Open the Infuser GUI.
• Try to put Pollen Cluster into an item slot tagged as "(No Effect)"

Expected: the inventory accepts the Pollen Cluster item, and the description changes from "(No Effect)" to "Strong Curative".
Actual: the inventory rejects the Pollen Cluster item.

• Try to put Crystalline Pollen Cluster into an item slot tagged as "(No Effect)"

Expected: the inventory accepts the Crystalline Pollen Cluster item, and the description changes from "(No Effect)" to "Weak Curative"
Actual: the inventory rejects the Crystalline Pollen Cluster item.

• Try to put Short Mead into the input item slot with a bottle as the background.

Expected: the inventory accepts the Short Mead item.
Actual: the inventory rejects the Short Mead item.

I've got a local fix for strictly this bug, but after testing it out, there are other related issues. It happens that doing nothing and letting this bug be a thing would be safer than fixing just this bug without any other changes at the same time. I'll submit a pull request once I've tackled all the issues I can find.