Added 1.18 support.

Skellett will now be separated into two versions. Java 17 and Java 11. The Java 17 versions is for 1.18+ mc and the Java 11 is for other versions. Both included in a ZIP.

Skellett now runs autonomously on the github, so when a version or library Skellett uses gets updated. The GitHub will automatically get updated and publish a nightly build. You can grab a 1.18.2+ version of Skellett if Mojang decides to do that at the source code here https://github.com/TheLimeGlass/Skellett

Report issues at https://github.com/TheLimeGlass/Skellett/issues

Skellett is an open source free project developed over the years, any donations are welcome and appreciated thank you!