Add Changelog, Readme and thirdpartynotices file

update package.json

Author: Markus

CHANGELOG.md

@@ -0,0 +1,11 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [0.1.0] - 2022-11-02
+### Added
+- Initial release

CHANGELOG.md.meta

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+A set of ui helper classes and scripts for editor tool development in Unity.
+This is a common dependency for many other tools from Gentlymad Studios.
+
+~ Use at you own risk ~

README.md

@@ -5,6 +5,9 @@
 	"description": "Editor UI by Gentlymad Studios.",
 	"unity": "2022.1",
 	"unityRelease": "16f1",
+	"documentationUrl": "https://github.com/Gentlymad-Studios/EditorUI/blob/master/README.md",
+	"changelogUrl": "https://github.com/Gentlymad-Studios/EditorUI/blob/master/CHANGELOG.md",
+	"licensesUrl": "https://github.com/Gentlymad-Studios/EditorUI/blob/master/LICENSE.md",
 	"dependencies": {
 	},
 	"keywords": [