[FSTORE-1537] Managed feature group metadata changes #480

Job	Run time
Lint and Stylecheck	10s
Unit Tests (Local TZ)	2m 42s
Unit Tests (3.8)	2m 35s
Unit Tests (No Optional Dependencies)	2m 14s
Unit Tests (Pandas 1.x)	2m 0s
Unit Tests (3.9)	2m 58s
Unit Tests (Typechecked)	4m 14s
Unit Tests (3.10)	2m 41s
Unit Tests (Windows)	8m 54s
Unit Tests (Windows) (Local TZ)	8m 56s
	37m 24s

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