Implement PrevId[] UTXO selection for FundVirtualPSBT RPC method; valid for single PrevId at first #3528

Job	Run time
cross compilation	11m 34s
Compilation check	1m 33s
Docker build check	3m 35s
Format check	28s
run itests	11m 20s
run itests postgres	20m 15s
Lint check	2m 34s
migration version check	11s
go mod check	22s
RPC check	1m 9s
run LiT tests	14m 1s
sample configuration check	37s
Sqlc check	29s
test vector check	52s
run unit tests (unit-race)	11m 21s
run unit tests (unit-cover)	4m 24s
run unit tests (unit dbbackend=postgres)	5m 59s
finish	4s
	1h 30m 48s

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