Add federation sync configuration SQL table and RPC endpoints #1560

Job	Run time
RPC check	1m 53s
cross compilation	13m 44s
Docker build check	4m 24s
Compilation check	40s
Lint check	3m 59s
go mod check	1m 7s
Sqlc check	33s
test vector check	1m 43s
Format check	36s
run itests	7m 32s
run itests postgres	10m 17s
run unit tests (unit-race)	6m 11s
run unit tests (unit-cover)	4m 1s
run unit tests (unit dbbackend=postgres)	6m 28s
	1h 3m 8s

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