Add script wicket user interface

The Community Script module does not currently have a Wicket User Interface. Adding a UI will make it much easier to add, update, and delete scripts.

Solves issue #GEOS-6483 (https://jira.codehaus.org/browse/GEOS-6483)
Yup you got it. Basically create a script-web module under community/script and move everything wicket ui specific into there.