Allow keeping schematron results in WADL output.

This enables a new option in the scala API that enables the normalized WADL to maintain a copy of the schematron report after the WADL has been normalized.  This allows api-checker to be able to introspect the dependencies of the normalized WADL..including all original WADLs, XSDs, any file the Schematron rules processes.  Unfortuenetly this currently does not include JSONSchema and PreProcesses XSLs.