vcl: make vcldemo work

Change-Id: Icef2d988c37fb7b25245ad9f3f3856fa86f76a77
vcl: fix svptest

Change-Id: Ibaec6e027aa9fd61824ff6b4f1f71b69d217dfdc
vcl: fix svpclient

I have converted the UNO stuff to the more modern variety (i.e. the
stuff that actually works now...), use GraphicFilter to get the
bitmap and fixed the string copy typo.

Change-Id: I6a3c1af54d222ef70814d2bb581cc2f3c058bb2f