OreDictionary for FuelHandling of ChacoalBlock

Replacing the block of charcoal fuel registry to use the OreDictionary for issue Ephys#33
The final here means we cannot change the content of the ItemStack during the loop.

But it will not prevent the assignation. Not during the severals iterations of the loop and not during the next calls to the loop. 

Or at least it shouldn't base on my knowledge