add more W3C PROV details about process I/O

[fmigneault]

Description

Using CWLProv and updates from common-workflow-language/cwltool#2082 and #778, a Job is able to return PROV metadata. This metadata is extended with the specific Weaver server details that are configured, the specific Process ID and the Job ID being executed.

However, the can still be more metadata to better describe provenance. For example, an input href specified as the OAP Job input will only be reflected as a CWL File after being stages/propagated down to the workflow engine. The original URI could be lost along the way. Similarly, a produced CWL File output could be a local file, which is exposed as URI via the WPS Outputs location.

To Do

• add https://dvcs.w3.org/hg/prov/raw-file/default/model/prov-dm.html#term-Derivation references for corresponding I/O (wasDerivedFrom, wasGeneratedBy, used, etc.) cross-referencing the CWL I/O to the Job I/O
• add cross-references between the I/O values and their corresponding Process I/O definitions