! Renamed project to MythicCosmetics

`+` Plugin is now a Mythic add-on and depends on MythicMobs

`+` Updated to support 1.21.3 and 1.21.4 (emotes currently broken, though)

`+` Dropped support for all versions before 1.21.3

`+` Updated to use ModelEngine 4

`+` Added support to load cosmetics from Mythic packs using folder structure `PACK/cosmetics/hats` etc

`+` Added support for Crucible implicit generation for hats and other equippabless

.gitlab-ci.yml

-image: maven:3-openjdk-16-slim
+image: maven:3.9.6-eclipse-temurin-21
 
 variables:
   MAVEN_CLI_OPTS: "-s .m2/settings.xml --batch-mode --update-snapshots"