chore: add fdv2 store & update sources to use fdv2 protocol definitions #234

Job	Run time
go-versions / go-versions	6s
Windows, Go 1.23	1m 0s
Windows, Go 1.22	1m 56s
Windows, Go 1.18	55s
Linux, Go 1.18 / Unit Tests and Coverage	26s
Linux, Go 1.18 / Benchmarks	3m 47s
Linux, Go 1.18 / Contract Tests	25s
Linux, Go 1.22 / Benchmarks	3m 45s
Linux, Go 1.22 / Contract Tests	17s
Linux, Go 1.22 / Unit Tests and Coverage	14s
Linux, Go 1.23 / Benchmarks	3m 46s
Linux, Go 1.23 / Unit Tests and Coverage	25s
Linux, Go 1.23 / Contract Tests	30s
	17m 32s

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