[psbt saga part 2/4]: preparation: refactor send logic, make passive assets independent #2263

Job	Run time
Compilation check	29s
cross compilation	8m 29s
Docker build check	2m 53s
Format check	20s
run itests	2m 16s
run itests postgres	2m 35s
Lint check	2m 6s
go mod check	23s
RPC check	1m 3s
Sqlc check	21s
test vector check	55s
run unit tests (unit-race)	4m 59s
run unit tests (unit-cover)	2m 46s
run unit tests (unit dbbackend=postgres)	5m 53s
	35m 28s

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