Add capacity to fluid tank data (1.20.x)

[EmmaTheMartian]

Closes #1629

The Forge implementation feels pretty hacky. I considered trying to change ComputerCraftAPIImpl#fluidStackDetails to a DetailRegistry<IFluidTank> or similar, however it seemed like it would have been less compatible or would entail a more breaking change for addon developers.

The Fabric implementation was clean-cut.

I also made this change for 1.21.x and will make a separate PR for that.

[SquidDev]

Thanks for the PR!

I'm not 100% sure about putting this in the result of tanks(). This method is somewhat meant to mirror inventory's list() method, and only return information about the fulid itself, while the capacity is much more a property of the tank itself¹.

I wonder if a better approach here would be to have a getTankCapacity(tank: number), like getItemLimit. Though then again, that won't work on Fabric, unless we want to constrain ourselves to slotted storages...

I'm not sure. Thoughts welcome!

Footnotes

1. The fluid peripheral is so badly designed. It's so tied to Forge's specific interface for fluid tasks :/. ↩