Reservoir Hatch

[kumquat-ir]

What

Adds the reservoir hatch, ported from GT++

Implementation Details

The hatch contains MAX_INT water.
Any interactions with the internal fluid tank of the hatch will not change the amount of water stored in it.
Fluid containers containing water can be emptied into it, and containers can be filled with water using it, either via the I/O slots or clicking the tank widget.
Since multiblocks do not go through the fluid tank and instead directly modify the fluid stack, the hatch will refill to its max capacity every second, if required.
The hatch is tiered at EV, one tier above the infinite water cover.

Outcome

Big Water for Multiblocks (and other uses)

Additional Information

Texture was taken from the original implementation, does that need a note in the readme?

Potential Compatibility Issues

/gt recipecheck did not detect any issues with the recipe. If any other open PR uses MTE ID 1418, that will end up conflicting.

[serenibyss]

Functionality and code seem good, recipe seems good. However I would still rather see the overlay only be applied on the front. I know that it isn't a strictly sided part, but all other parts follow this so this part feels out of place visually