Add federation sync configuration SQL table and RPC endpoints #1530

Job	Run time
RPC check	1m 35s
RPC check	1m 35s
cross compilation	14m 0s
cross compilation	14m 0s
Docker build check	4m 14s
Docker build check	4m 14s
Lint check	3m 16s
Lint check	3m 16s
Compilation check	1m 0s
Compilation check	1m 0s
go mod check	1m 14s
go mod check	1m 14s
Sqlc check	28s
Sqlc check	28s
test vector check	1m 22s
test vector check	1m 22s
Format check	27s
Format check	27s
run itests postgres	10m 40s
run itests postgres	11m 20s
run itests	8m 14s
run itests	8m 14s
run unit tests (unit-race)	6m 17s
run unit tests (unit-race)	6m 17s
run unit tests (unit-cover)	5m 6s
run unit tests (unit-cover)	5m 6s
run unit tests (unit dbbackend=postgres)	5m 8s
run unit tests (unit dbbackend=postgres)	5m 8s
	2h 6m 42s

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