feat: Add FDv2 Streaming Synchronizer #217

Job	Run time
test-packaging	2m 31s
test-contract-tests	2m 46s
test-platforms-and-versions (ubuntu-latest, 11)	2m 40s
test-platforms-and-versions (ubuntu-latest, 8)	2m 40s
test-platforms-and-versions (ubuntu-latest, 17)	2m 53s
test-platforms-and-versions (ubuntu-latest, 19)	2m 54s
	16m 24s

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