Update the Paging Example, and other...

- Add prefix and inputPrefix in the prossessor, (not for the default parameters)
- Rename subReport to scaleBasSubReport
- Rename the paging output from maps to datasource to better use the default names
- In the example use a series like A..Z, AA..ZZ, AAA..ZZZ
- In the example use a scalebar
- In the example use a MultiPolygon