Backend/BlockExplorer: new LTC explorer #2938

Job	Run time
linux20-vanilla--newmono-only	5m 49s
linux20-github--dotnet-and-mono	3m 27s
linux20-github--dotnet-and-newmono	3m 39s
linux20-vanilla--stockmono-only	5m 3s
linux22-github--dotnet-and-mono	4m 2s
linux22-github--dotnet-and-newmono	3m 58s
linux22-vanilla--stockdotnet6-and-newmono	5m 23s
linux22-vanilla--newmono-only	5m 40s
linux22-vanilla--stockdotnet6-and-stockmono	5m 19s
linux22-vanilla--stockdotnet6-only	4m 35s
linux22-vanilla--stockmono-only	4m 57s
macOS--dotnet6-and-mono	5m 18s
macOS--dotnet6-only	3m 45s
macOS--mono-only	5m 28s
windows--dotnet6-and-legacyFramework	6m 18s
windows--dotnet6-only	6m 42s
windows--legacyFramework-only	14m 37s
conventions	1m 3s
snap_pkg	3m 47s
	1h 38m 50s

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