Add infrastructure to check for problems with npm configuration files #1324

Job	Run time
run-determination	1s
check-config (./)	19s
check-config (docsgen)	18s
check-errors (./)	30s
check-formatting (./)	13s
check-config (ruledocsgen)	19s
check-errors (docsgen)	30s
check-errors (ruledocsgen)	37s
check-outdated (./)	14s
check-formatting (docsgen)	20s
check-outdated (docsgen)	14s
check-formatting (ruledocsgen)	20s
check-style (./)	18s
check-outdated (ruledocsgen)	18s
check-style (docsgen)	15s
check-style (ruledocsgen)	15s
	5m 1s

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