chore: commonizes several FDv2 related types in Common #360

Job	Run time
test-packaging	5m 51s
test-contract-tests	4m 30s
test-platforms-and-versions (ubuntu-latest, 8)	3m 42s
test-platforms-and-versions (ubuntu-latest, 19)	3m 40s
test-platforms-and-versions (ubuntu-latest, 11)	4m 10s
test-platforms-and-versions (ubuntu-latest, 17)	3m 41s
	25m 34s

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