ENH: 1. A basic mode added with auto-examine (only scalar plugin)

2. Advanced option added (using other plugings)
3. Tables orientation is not dynamic. Default is vertical, horizontal can
be toggled by a checkbox
4. tables are now expandable

STYLE: changed the metadata viewer name

From: Alireza Mehrtash <mehrtash@bwh.harvard.edu>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23005 3bd1e089-480b-0410-8dfb-8563597acbee