Defines the Validation Processor and Support classes.

The Validation Process is defined separately from GeoServer so that it may be reused in the future by other applications.

It is currently lurking in the geotools2 folder in the hopes that when it is finished it may be migrated to the Geotools2 library.

This work has been donated by Refractions Research as part of a GeoConnections funded Validating Web Feature Server project.

@see http://vwfs.refractions.net/ @see http://vwfs.refractions.net/docs/Plugin_API.pdf @see http://cgdi.gc.ca/CGDI.cfm