Sledgehammer v1.1.0

Update 1.1.0

Added basic commands.
Implemented https://github.com/LXGaming/Sledgehammer/commit/640329d124bc64f2028d2ebc56d8426c39238632#r28894093
 suggestion
Seperated Vanilla (Core) & Modded (Forge) mixins.
Cleaned up Gradle dependencies.
Added MixinForgeHook to capture advancement stacktraces in Forge