Backend/UtxoCoin: support native-segwit with cold storage #3096

Job	Run time
macOS--dotnet6-and-mono	1m 31s
macOS--mono-only	50s
macOS--dotnet6-only	1m 3s
windows--dotnet6-and-legacyFramework	1m 57s
linux-github--dotnet-and-mono	1m 7s
windows--dotnet6-only	2m 29s
windows--legacyFramework-only	11m 29s
linux-github--dotnet-and-newmono	1m 20s
linux-vanilla--stockdotnet6-only	46s
linux-vanilla--stockdotnet6-and-newmono	1m 40s
linux-vanilla--stockmono-only	1m 35s
linux-vanilla--newmono-only	2m 53s
linux-vanilla--stockdotnet6-and-stockmono	1m 23s
conventions	0s
snap_pkg	0s
snap_pkg_beta	0s
	30m 3s

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