Add convenience command lsp-metals-open-server-log #239

Job	Run time
build (ubuntu-latest, 27.2, false)	1m 23s
build (ubuntu-latest, 28.2, false)	2m 1s
build (ubuntu-latest, 29.1, false)	1m 43s
build (macos-latest, 27.2, false)	3m 26s
build (macos-latest, 28.2, false)	3m 42s
build (macos-latest, 29.1, false)	3m 25s
build (windows-latest, 27.2, false)	1m 50s
build (windows-latest, 28.2, false)	2m 13s
build (windows-latest, 29.1, false)	2m 26s
build (ubuntu-latest, snapshot, true)	1m 32s
build (macos-latest, snapshot, true)	3m 12s
build (windows-latest, snapshot, true)	40s
	27m 33s

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