Visual Cross Reference: Integration with FileMan DB Calls

FileManDbCallParser: A new python module to parse the fileman db call
information based on the JSON output from an enhanced PWC's
MRoutineAnalyze tool and integrate with CrossReference Module.

CrossReference: Modify the Routine/Global/Package/CrossReference classes to
integrate fileman db call information, also refactoring some of the common code.

WebPageGenerator: Add a top level page for all file man subfiles.
Modify individual Routine and  Global pages to display detailed fileman
files accessed by fileman db calls. Modify Package and Package Interaction
Pages, graph to include the dependencies based on the fileman db calls.
Also increase the max size to generate dependency graph from 20 to 30.

CallerGraphParser: Move some common code to CrossReference, change the
command line options.

CrossReferenceBuilder: Update the command line interface to include option
to parse FileMan DB Call JSON file.

OSEHRA-Id: http://issues.osehra.org/browse/CGCT-3
Change-Id: Ic222ea1676eaceec65df08f24daa842ed9174aaf
Merge "Visual Cross Reference: Integration with FileMan DB Calls"