[AI-FSSDK] [FSSDK-12337] Add Feature Rollout support #1544

Job	Run time
browser_tests (safari)	3m 38s
unit_tests (20)	1m 37s
typescript_test	1m 33s
browser_tests (chrome)	7m 50s
browser_tests (firefox)	9m 57s
unit_tests (18)	1m 48s
unit_tests (24)	1m 30s
browser_tests (edge)	7m 37s
lint_markdown_files / lint	1m 17s
fullstack_production_suite / test	6s
lint	58s
integration_tests / test	9s
unit_tests (22)	1m 43s
Coveralls coverage	4s
	39m 47s

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