Use drain over time for essence in Enchantment Applicator

[ChloeDawn]

Currently, the machine attempts to instantly consume the required essence for an operation, which limits operation cost to the tank's internal capacity. If It were a drain over the time of a given operation, it would be possible to exceed the internal capacity if an external tank of essence were being pumped into the machine.

Another thing to note is that the default internal tank capacity seems to not be large enough for operations that would otherwise be possible in an anvil.

Anvil operation reporting a valid cost:

Machine operation not running due to cost exceeding internal capacity: