Added ShadowJar plugin to Gradle. Added PacketEvents library. Added new CreativeInvPacketListeners class. Added new UseEntityPacketListener class. Made plugin properly unregister listeners on shutdown. Deprecated ProtocolLib classes and methods. Marked ProtocolLib classes and methods for removal. Changed EntityMountEvent to BukkitAPI import. Changed version to `2.10.0-SNAPSHOT-01`. · dniym/IllegalStack@cc7d701