Utility class for working with URLs.
Extracts the basename from a URL, e.g. "folder/model.glb" -> "model". See: FileUtils.basename
Extracts the extension from a URL, e.g. "folder/model.glb" -> "glb". See: FileUtils.extension
Returns true for paths that are declared relative to some unknown base path. For example, "foo/bar/" is relative both "/foo/bar/" is not.
Returns true for URLs containing a protocol, and false for both absolute and relative paths.