Helper to install via composer ...
With v3 it ist possible to download files from https://unpkg.com/.
Example: add a package to composers extra section
        "openmage-unpkg-packages": {
            "@eastdesire/jscolor": {
                "version": "2.5.2",
                "source": "",
                "target": "js/jscolor",
                "files": [
                    "jscolor.js"
                ]
            }
        }
Note: composer install is broken since ChartJs v3. Until its fixed we try to download from https://unpkg.com