asset: introduce new asset version v1 for segwit-like encoding #1450

Job	Run time
Format check	35s
Docker build check	4m 45s
cross compilation	13m 33s
Compilation check	1m 11s
run itests	2m 57s
run itests postgres	3m 5s
Lint check	3m 5s
go mod check	34s
RPC check	42s
Sqlc check	33s
test vector check	1m 22s
run unit tests (unit-race)	5m 48s
run unit tests (unit-cover)	4m 10s
run unit tests (unit dbbackend=postgres)	4m 45s
	47m 5s

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