3.0.0 repo structure maintenance

This release doesn't bring new features.
It improve overall repository structure.
Never the less it introduce some breaking API change, thus the major upgrade in versioning.

What's Changed

• KUI maintenance restructuring by @MrLixm in #9

• support for lllogger 2.0.0
• improved integration of lllogger
• added compatibility with katananodling
• KuiSetup and KuiInstancer nodes are now built from katananodling CustomNode system
• (major change) improved lua API calls, unifying functions call using . instead of :
• improved dev/ resources
• updated documentation

Full Changelog: v2.0.0...v3.0.0