Add a fish permission

[FireML]

Adds the ability to lock fish behind a permission.

    Shiny Pickle:
      permission: "emf.shiny_pickle"

This fish can only be caught if the player has the emf.shiny_pickle permission.

It loops over all possible fish until the player has permission, or all fish have been checked.

If the player doesn't have permission for any fish, it prints an error to console:

[10:13:39 INFO]: [EvenMoreFish] [STDOUT] Max: 1
[10:13:39 INFO]: [EvenMoreFish] [STDOUT] Checked: 1
[10:13:39 ERROR]: [EvenMoreFish] Could not determine a fish for FireML. The player doesn't have permission to catch any fish! (See fish.yml)

[FireML]

oh so it does. i didn't realise it already existed, my bad.