modified fingerprint db to allow storing and retrieval of metadata.

[mamunm]

[coveralls]

Pull Request Test Coverage Report for Build 283

• 23 of 76 (30.26%) changed or added relevant lines in 3 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.5%) to 66.684%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
catkit/pawprint/operations.py	15	17	88.24%
catkit/pawprint/generator.py	2	4	50.0%
catkit/db.py	6	55	10.91%
<!--	Total:	23	76

Files with Coverage Reduction	New Missed Lines	%
catkit/hub/folderreader.py	1	73.2%
<!--	Total:	1

Totals
Change from base Build 282:	-0.5%
Covered Lines:	3823
Relevant Lines:	5733

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💛 - Coveralls