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
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+421
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master/bt5/vifib_web/bt/revision

-357
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+358
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