R-CMD-check.yaml

clean up internal namespace and directly re-export nflreadr functions #1034

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macos-latest (release)	1m 58s
windows-latest (release)	2m 35s
ubuntu-latest (devel)	28m 58s
ubuntu-latest (release)	5m 7s
ubuntu-latest (oldrel-1)	5m 1s
	43m 39s