Backend/Utxo: support native segwit #2872

Job	Run time
macOS--dotnet6-only	4m 48s
windows--dotnet6-and-legacyFramework	6m 3s
linux-github--dotnet-and-mono	4m 4s
linux-github--dotnet-and-newmono	9m 20s
linux-vanilla--stockdotnet6-and-newmono	5m 23s
linux-vanilla--stockdotnet6-only	6m 27s
linux-vanilla--stockmono-only	5m 16s
macOS--dotnet6-and-mono	16m 2s
macOS--mono-only	14m 41s
windows--dotnet6-only	8m 34s
windows--legacyFramework-only	15m 12s
linux-vanilla--newmono-only	13m 31s
linux-vanilla--stockdotnet6-and-stockmono	6m 30s
conventions	1m 8s
snap_pkg	6m 30s
	2h 3m 29s

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