Remove IFluidBlock and FluidBlockWrapper

[TelepathicGrunt]

As far as I can tell with a global GitHub search, I was able to find only about 4 mods that actually implemented IFluidBlock. Only 1 of which was actually returning some fluid data. The rest were returning 0 or null for fluids from the interface methods.

So as far as we can tell, IFluidBlock is ridiculously unused and pretty much dead code. So this PR does some cleanup of removing it. If someone had a use case for needing this interface for their block, they can reach out to use so we can get details ont heir use case and come up with a more modern and intuitive solution better than IFluidBlock.

Closes #1013

[neoforged-pr-publishing]

• Publish PR to GitHub Packages

Last commit published: 8655e4d40cce4ba4811fa7e90c2f35830f1e2390.

PR Publishing

The artifacts published by this PR:

• 📦 net.neoforged:testframework:20.6.111-beta-pr-1024-RemoveIFluidBlock
• 📦 net.neoforged:neoforge:20.6.111-beta-pr-1024-RemoveIFluidBlock

Repository Declaration

In order to use the artifacts published by the PR, add the following repository to your buildscript:

repositories {
    maven {
        name 'Maven for PR #1024' // https://github.com/neoforged/NeoForge/pull/1024
        url 'https://prmaven.neoforged.net/NeoForge/pr1024'
        content {
            includeModule('net.neoforged', 'testframework')
            includeModule('net.neoforged', 'neoforge')
        }
    }
}

MDK installation

In order to setup a MDK using the latest PR version, run the following commands in a terminal.
The script works on both *nix and Windows as long as you have the JDK bin folder on the path.
The script will clone the MDK in a folder named NeoForge-pr1024.
On Powershell you will need to remove the -L flag from the curl invocation.

mkdir NeoForge-pr1024
cd NeoForge-pr1024
curl -L https://prmaven.neoforged.net/NeoForge/pr1024/net/neoforged/neoforge/20.6.111-beta-pr-1024-RemoveIFluidBlock/mdk-pr1024.zip -o mdk.zip
jar xf mdk.zip
rm mdk.zip || del mdk.zip

To test a production environment, you can download the installer from here.