Add federation sync configuration SQL table and RPC endpoints #1451

Job	Run time
Compilation check	54s
Format check	28s
cross compilation	13m 1s
Docker build check	4m 19s
run itests postgres	10m 15s
run itests	8m 41s
Lint check	3m 19s
go mod check	38s
RPC check	1m 36s
test vector check	1m 17s
Sqlc check	30s
run unit tests (unit-race)	5m 38s
run unit tests (unit-cover)	5m 3s
run unit tests (unit dbbackend=postgres)	6m 9s
	1h 1m 48s

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