Improve Computer usage listbox.

Show software release state and usage.
Reuse scripts from vifib_web.

master/bt5/vifib_base/SkinTemplateItem/portal_skins/vifib_base/Computer_viewCurrentUsage.xml

@@ -95,6 +95,7 @@
                         <string>listbox_parent_state</string>
                         <string>listbox_software_release</string>
                         <string>listbox_installation_state</string>
+                        <string>listbox_usage</string>
                       </list>
                     </value>
                 </item>

master/bt5/vifib_base/bt/revision

-420
+421
\ No newline at end of file

master/bt5/vifib_web/bt/revision

-357
+358
\ No newline at end of file