Augmented the GMP documentation with the appliance_status element.

Augmented the GMP documentation with the documentation of the
<appliance_status> element of the response of the get license
command.

src/schema_formats/XML/GMP.xml.in

@@ -12632,13 +12632,19 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
         <summary>The license information</summary>
         <pattern>
           <e>status</e>
+          <e>appliance_status</e>
           <e>content</e>
         </pattern>
         <ele>
           <name>status</name>
           <summary>Status of the license</summary>
           <pattern>text</pattern>
         </ele>
+        <ele>
+          <name>appliance_status</name>
+          <summary>Status of the appliance</summary>
+          <pattern>text</pattern>
+        </ele>
         <ele>
           <name>content</name>
           <summary>The main content of the license file</summary>
@@ -12776,6 +12782,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
         <get_license_response status="200" status_text="OK">
           <license>
             <status>active</status>
+            <appliance_status>commercial_active</appliance_status>
             <content>
               <meta>
                 <id>4711</id>