Configure a ResourceUrlProvider to use when resolving the public
URL of links in a transformed resource (e.g. import links in a CSS file).
This is required only for links expressed as full paths and not for
A transformer can use this method when a resource being transformed
contains links to other resources. Such links need to be replaced with the
public facing link as determined by the resource resolver chain (e.g. the
public URL may have a version inserted).
resourcePath - the path to a resource that needs to be re-written