Add eyes of ender to the explosives factory

Heard fk_54 mention a few times that eyes of ender aren't craftable, can't find a deliberate block on this. Haven't tested but have added a factory here for review, doesn't boost efficiency much but should work around any issue there.

Added to explosives factory:

<pre><code>32 Eyes of Ender for 32 Ender Pearl, 16 Blaze Powder</code></pre>