asset: introduce new asset version v1 for segwit-like encoding #1495

Job	Run time
cross compilation	5m 1s
Compilation check	41s
Docker build check	4m 3s
Format check	31s
run itests	5m 55s
run itests postgres	8m 17s
Lint check	3m 42s
go mod check	1m 11s
RPC check	1m 40s
Sqlc check	38s
test vector check	1m 5s
run unit tests (unit-race)	7m 18s
run unit tests (unit-cover)	2m 21s
run unit tests (unit dbbackend=postgres)	6m 54s
	49m 17s

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