Implemented thumbnail drawing in wxPDFViewThumbnailListBox

git-svn-id: http://devserv/svn/fluxdvd/components/wxPDFView/trunk@8146 ee4118f4-65c3-8c42-83c6-dbb17464b6b1
Added wxPDFViewArtProvider for PDF specific art

git-svn-id: http://devserv/svn/fluxdvd/components/wxPDFView/trunk@8147 ee4118f4-65c3-8c42-83c6-dbb17464b6b1
Added zoom mode buttons to wxPDFViewDocumentFrame toolbar

git-svn-id: http://devserv/svn/fluxdvd/components/wxPDFView/trunk@8148 ee4118f4-65c3-8c42-83c6-dbb17464b6b1
Added Zoom in/out icons

git-svn-id: http://devserv/svn/fluxdvd/components/wxPDFView/trunk@8149 ee4118f4-65c3-8c42-83c6-dbb17464b6b1