feat: support Casbin FilteredAdapter interface

[basakest]

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[coveralls]

Pull Request Test Coverage Report for Build 710514422

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• 23 of 23 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+4.9%) to 81.429%

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Totals
Change from base Build 708293135:	4.9%
Covered Lines:	114
Relevant Lines:	140

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💛 - Coveralls