Add federation sync configuration SQL table and RPC endpoints #1438

Job	Run time
Format check	36s
cross compilation	5m 11s
Compilation check	36s
Docker build check	5m 29s
run itests	5m 34s
run itests postgres	10m 26s
Lint check	3m 41s
go mod check	35s
RPC check	1m 39s
Sqlc check	33s
run unit tests (unit-race)	5m 42s
test vector check	59s
run unit tests (unit-cover)	2m 17s
run unit tests (unit dbbackend=postgres)	3m 52s
	47m 10s

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