Update Extension Development page

* Plugin versions have been updated to mirror current versions used by CommandHelper
* Clarified that functions should be wrapped in a parent class
* Updated introduction to remove redundancy and misleading "under construction" language
(commit: 483de30)

src/main/resources/docs/Extension_Development

PseudoKnight at 11:56 AM 3/19/24

Add entity_in_water()
(commit: 1a81140)

src/main/java/com/laytonsmith/abstraction/MCEntity.java src/main/java/com/laytonsmith/abstraction/bukkit/entities/BukkitMCEntity.java src/main/java/com/laytonsmith/core/functions/EntityManagement.java

PseudoKnight at 11:57 AM 3/19/24

Provide additional extension hook point

Introduce PacketJumper docs directly in CH docs.
(commit: 42e7776)

src/main/java/com/laytonsmith/commandhelper/CommandHelperPlugin.java src/main/java/com/laytonsmith/core/extensions/AbstractExtension.java src/main/java/com/laytonsmith/core/packetjumper/PacketJumper.java src/main/resources/docs/Packet_Jumper src/test/java/com/laytonsmith/testing/StaticTest.java src/main/java/com/laytonsmith/core/extensions/Extension.java src/main/java/com/laytonsmith/core/extensions/ExtensionManager.java src/main/java/com/laytonsmith/core/packetjumper/PacketInstance.java pom.xml src/main/java/com/laytonsmith/core/constructs/Construct.java src/main/resources/siteDeploy/LearningTrail.json src/main/java/com/laytonsmith/core/packetjumper/PacketInfo.java

noreply at 4:25 PM 3/21/24

Move onLoad to initialization
(commit: 82a1cd0)

src/main/java/com/laytonsmith/core/extensions/ExtensionManager.java src/main/java/com/laytonsmith/commandhelper/CommandHelperPlugin.java

LadyCailin at 4:38 PM 3/21/24