Feature/energy regulator gui

[Intybyte]

Description

On right click of an energy regulator display the consumers and info about their state.

Proposed changes

Saw on the #approved suggestions of the discord the suggestion number #2255 and I decided to implement it.

Checklist

• I have fully tested the proposed changes and promise that they will not break everything into chaos.
• I have also tested the proposed changes in combination with various popular addons and can confirm my changes do not break them.
• I have made sure that the proposed changes do not break compatibility across the supported Minecraft versions (1.16.* - 1.20.*).
• I followed the existing code standards and didn't mess up the formatting.
• I did my best to add documentation to any public classes or methods I added.
• I have added Nonnull and Nullable annotations to my methods to indicate their behaviour for null values
• I added sufficient Unit Tests to cover my code.

[github-actions]

Your Pull Request was automatically labelled as: "🎈 Feature"
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[J3fftw1]

I don’t know if it’s smart to add another block with an inventory without any actual use.

I do appreciate the PR but I’m not sure if it’s smart to add it.