Felling enchantment not working with Ice and Fire Axes

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## Version Information

Substitute the [versions] for your specific details.

- Minecraft 1.12.2
- Forge: 14.23.3.2655
- Felling: 1.4.0

## Report Information

on your mod overview it says that the felling enchantment works with anything that uses the "axe" tool class. but, when i run it in combination with the mod "Ice and Fire" i can't enchant dragon bone axes in an anvil, which use the axe class as far as im aware of.

## Steps to Reproduce

install ice and fire version 1.5.0 and felling 1.4.0 with all required library and core mods, and try to put felling 2 on a dragon bone axe

## Forge Log

i dont have any program that reads log files, wordpad and notepad both give me code characters rather than any discernible log, even if i could, the log for that session is over 3 hours long.

## Crash Log (if appropriate)
N/A

Start by reproducing the issue with Minecraft 1.12.2, Forge 14.23.3.2655, Felling 1.4.0, and Ice and Fire 1.5.0, then inspect how Felling checks axe compatibility against the Dragon Bone Axe. Done means Felling II can be applied to a Dragon Bone Axe in an anvil without breaking compatibility with other supported axes.

Written by the indexing model from the issue text.