Add a display name extension to KeyMapping

[Matyrobbrt]

This PR adds a getDisplayName method to IKeyMappingExtension, allowing custom key mapping implementations to show users a name in the keybindings GUI that is not a translatable component of their ID.
This method can be used, for instance, by generated key mappings that are not statically known at build-time and therefore have no translations for their names. I am working on a mod which allows users to create their own key bundles on-demand to disambiguate keymappings and I need to display the name they gave to the bundle in the bindings UI instead of an untranslated translation key.

[neoforged-pr-publishing]

• Publish PR to GitHub Packages

Last commit published: ceb012199462d167645e7e1ba4fcd169f3dec951.

PR Publishing

The artifacts published by this PR:

• 📦 net.neoforged:neoforge:21.4.51-beta-pr-1826-keymapping-display-name
• 📦 net.neoforged:testframework:21.4.51-beta-pr-1826-keymapping-display-name

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 #1826' // https://github.com/neoforged/NeoForge/pull/1826
        url 'https://prmaven.neoforged.net/NeoForge/pr1826'
        content {
            includeModule('net.neoforged', 'neoforge')
            includeModule('net.neoforged', 'testframework')
        }
    }
}

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-pr1826.
On Powershell you will need to remove the -L flag from the curl invocation.

mkdir NeoForge-pr1826
cd NeoForge-pr1826
curl -L https://prmaven.neoforged.net/NeoForge/pr1826/net/neoforged/neoforge/21.4.51-beta-pr-1826-keymapping-display-name/mdk-pr1826.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.

[ChampionAsh5357]

I think this is fine. I was looking at KeybindContents to see if something needs to be done for the resolver, but since it only uses the translation key when no key mapping is registered, there shouldn't be an issue.

[neoforged-releases]

🚀 This PR has been released as NeoForge version 21.4.54-beta.