add setKeymap method

comar/etc/model.xml

@@ -430,6 +430,10 @@
             <arg name="firstScreen" type="ss" direction="in"/>
             <arg name="secondScreen" type="ss" direction="in"/>
         </method>
+        <method name="setKeymap" access_label="set">
+            <arg name="layout" type="s" direction="in"/>
+            <arg name="variant" type="s" direction="in"/>
+        </method>
     </interface>
     <interface name="Xorg.Driver">
         <method name="enable"/>