PneumaticCraft conduits

[ferriarnus]

Description

First try to implement pressure conduits from PneumaticCraft. This is a somewhat naïve impl, but it seems to work. Feel free to test or suggest improvements.

TODO

• [ ] Textures
• [ ] Round robin
• [ ] test...

Breaking Changes

List any breaking changes in this section, such as: changed/removed APIs, changed or removed items/blocks or modifications to recipes and gameplay mechanics.

Checklist

• [ ] My code follows the style guidelines of this project (.editorconfig, most IDEs will use this for you).
• [ ] I have made corresponding changes to the documentation.
• [ ] My changes are ready for review from a contributor.

[Rover656]

The implementation looks good, I've not run to test it yet but I'm wondering whether something like this belongs in base Ender IO?