VistAMComponentExtractor: Remove dependency on VistA-FOIA

Use Packages.csv file in the VistA repo, and also scripts in the
same directory.

Modify UnpackRO.py to support output routines to specified dir,
and output progress message to a specified file like object.

Change-Id: I150e66a365489de2b808031000ba9e45b5348b00
Merge "VistAMComponentExtractor: Remove dependency on VistA-FOIA"