Misc changes related to SMaHT ingestion.

[coveralls]

Pull Request Test Coverage Report for Build 6736515053

• 17 of 24 (70.83%) changed or added relevant lines in 3 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+0.008%) to 78.593%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
dcicutils/bundle_utils.py	5	6	83.33%
dcicutils/validation_utils.py	10	11	90.91%
dcicutils/ff_utils.py	2	7	28.57%
<!--	Total:	17	24	70.83%	-->

Files with Coverage Reduction	New Missed Lines	%
dcicutils/bundle_utils.py	1	89.77%
<!--	Total:	1		-->

Totals
Change from base Build 6710569342:	0.008%
Covered Lines:	9340
Relevant Lines:	11884

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💛 - Coveralls