[FSTORE-1537] Managed feature group metadata changes #479

Job	Run time
Lint and Stylecheck	9s
Unit Tests (Pandas 1.x)	1m 44s
Unit Tests (3.8)	2m 11s
Unit Tests (No Optional Dependencies)	1m 41s
Unit Tests (3.9)	2m 9s
Unit Tests (Local TZ)	2m 38s
Unit Tests (3.10)	2m 34s
Unit Tests (Typechecked)	1m 17s
Unit Tests (Windows)	7m 11s
Unit Tests (Windows) (Local TZ)	6m 57s
	28m 31s

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