Add an optional parameter --detail

This patch appends th --detail parameter to the ``stores-info``
command. With sufficient permissions, display additional
information about the stores.

Depends-On: https://review.opendev.org/c/openstack/glance/+/824438
Change-Id: I6ae08ab3eaab0c2b118aa7607246214b28025dfe

glanceclient/v2/images.py

@@ -322,6 +322,13 @@ class Controller(object):
         resp, body = self.http_client.get(url)
         return body, resp
 
+    @utils.add_req_id_to_object()
+    def get_stores_info_detail(self):
+        """Get available stores info from discovery endpoint."""
+        url = '/v2/info/stores/detail'
+        resp, body = self.http_client.get(url)
+        return body, resp
+
     @utils.add_req_id_to_object()
     def delete_from_store(self, store_id, image_id):
         """Delete image data from specific store."""