Support 1.20.6

[EpicPlayerA10]

Changes

• Added required adapters for 1.20.6 due to internals breaking changes
• Restructured a bit PlayerHeadAdapters
• Added paper-specific adapters too. This change will make dough future-proof on paper.
• Added exclusions in pom.xml in module dough-protection because dough couldn't be compiled. This is because one of dependencies provided very old version of bukkit which broke compilation
• In main pom.xml changed from spigot to paper to be able to use paper features in adapters

[EpicPlayerA10]

ItemUtils.damageItem needs an update as well, the unbreaking enchantment enum name is renamed.

We don't need to do this as from what i see dough is not updating minecraft version in the pom.xml:

dough/pom.xml

Lines 287 to 292 in baf2d79

	<dependency>
	<groupId>org.spigotmc</groupId>
	<artifactId>spigot-api</artifactId>
	<version>1.18.1-R0.1-SNAPSHOT</version>
	<scope>provided</scope>
	</dependency>

And spigot already auto renames these fields for plugins that are built for older minecraft versions: https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/browse/src/main/java/org/bukkit/craftbukkit/legacy/FieldRename.java . So no error will be thrown.

[mcchampions]

This pr conflicts with #219.

[md5sha256]

ItemUtils.damageItem needs an update as well, the unbreaking enchantment enum name is renamed.

We don't need to do this as from what i see dough is not updating minecraft version in the pom.xml:

dough/pom.xml

Lines 287 to 292 in baf2d79

	<dependency>
	<groupId>org.spigotmc</groupId>
	<artifactId>spigot-api</artifactId>
	<version>1.18.1-R0.1-SNAPSHOT</version>
	<scope>provided</scope>
	</dependency>

And spigot already auto renames these fields for plugins that are built for older minecraft versions: https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/browse/src/main/java/org/bukkit/craftbukkit/legacy/FieldRename.java . So no error will be thrown.

This does need to be updated as otherwise dough cannot compile if the consumer is compiling against 1.20.5+. The suggested fix is to refactor it to use the bukkit Registry.ENCHANTMENT api and grab it via the minecraft namespaced key.

[EpicPlayerA10]

Done

[mcchampions]

Java started using records in Java 16, while Authlib didn't use records until much later. As of the last version of Paper 1.18.2 that depended on Authlib, Property was still a class. Therefore, you might need to use reflection to call the getter method of an older version of Property.

[ybw0014]

Based on the result server testing by boomer: