Bind schema / grammar should provide the capability to associate the XML with an entry of XML catalog

When this XML catalog is registered:

<?xml version="1.0" encoding="UTF-8"?>
<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
<!--DITA Base Map Shell-->

   <public publicId="-//OASIS//DTD DITA 2.0 Base Map//EN" uri="basemap.dtd"/>
   <public publicId="-//OASIS//DTD DITA 2.x Base Map//EN" uri="basemap.dtd"/>
   <public publicId="-//OASIS//DTD DITA 2.0 Base Topic//EN"
           uri="basetopic.dtd"/>

and we create an empty file, the Bind schema / grammarcodelens should appear (it should be fixed with https://github.com/redhat-developer/vscode-xml/issues/819)

Click on this codelens should display an new entry catalog:

If user click on catalog, it should open a list with all catalog entries of registered catalog like -//OASIS//DTD DITA 2.0 Base Map//EN, when it select it, the XML should be generated with the proper namespace.

Start with the registered XML catalog flow and the Bind schema / grammar codelens behavior described here. Verify that an empty XML file shows the codelens, that selecting the catalog lists entries such as the DITA public ID, and that choosing one generates XML with the proper namespace.