Consolidates all the declarative pictures into one directory.
-kept contents of doc/src/qtquick1/pics.
-qdocconf file only looks at doc/src/images and therefore qdoc3
 does not find images outside of that directory.

Change-Id: I9da431f54c93d8b397accc1124a273758466994b
Reviewed-on: http://codereview.qt-project.org/5921


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Alan Alpert <alan.alpert@nokia.com>
Reviewed-by: Bea Lam <bea.lam@nokia.com>