[1.21.1] Sync remaining c tags from Fabric side

[TelepathicGrunt]

Fabric had some tags that was not in Neo. This PR aims to solve that by importing those tags. Specifically c:potions item tag and c:is_temperate biome tags. I added the torchflower seeds to c:seeds/torchflower and then added that to the c:seeds tag as well as it was a missing seed.

I also improved javadoc for several tags, did some cleanup in a few spots, and marked the c:is_modified biome tag as deprecated and for removal in 1.22. Reason being the modified tag was based off of how the old biome layout used to work in the long past. Since Mojang revamped how biomes work, this tag lost all of its meaning and serves no purpose anymore. Hence time to retire it.

The PR to add the tags that are not in Fabric from Neoforge is in this other PR. Discussions ongoing of course: FabricMC/fabric#4161

[neoforged-pr-publishing]

• Publish PR to GitHub Packages

Last commit published: f0c8e3dd0fc4fc3e8a88f51424146b6f61d16636.

PR Publishing

The artifacts published by this PR:

• 📦 net.neoforged:testframework:21.1.93-pr-1593-SyncToFabricTags
• 📦 net.neoforged:neoforge:21.1.93-pr-1593-SyncToFabricTags

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 #1593' // https://github.com/neoforged/NeoForge/pull/1593
        url 'https://prmaven.neoforged.net/NeoForge/pr1593'
        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-pr1593.
On Powershell you will need to remove the -L flag from the curl invocation.

mkdir NeoForge-pr1593
cd NeoForge-pr1593
curl -L https://prmaven.neoforged.net/NeoForge/pr1593/net/neoforged/neoforge/21.1.93-pr-1593-SyncToFabricTags/mdk-pr1593.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.