Added ability to embed an external AFP page segment resource file (AFP output only).
Submitted by: Peter Hancock <peter.hancock.at.gmail.com>
Changes to patch:
- Replaced AFP parsing code with a more universal MO:DCA parser (as discussed).
- AFPDocumentHandler: addressed a TODO (clearing of the page segment map was not necessary for each page)
- AFPDocumentHandler: merged pageSegmentMap and pageSegmentUriMap by creating a combined object: PageSegmentDescriptor
git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1005350 13f79535-47bb-0310-9956-ffa450edef68