Description of changes:
Added sample code for using signature with Analyze Documents under python folder. Added a sample document to use for detecting signature.
By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.
Issue #, if available:
Description of changes: Added sample code for using signature with Analyze Documents under python folder. Added a sample document to use for detecting signature.
By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.