Add sunpy style sample data downloading (#421) #163

Job	Run time
sdist_verify	13s
allowed-fail-tests / Load tox environments	8s
docs / Load tox environments	7s
tests / Load tox environments	5s
tests / py312 (ubuntu-latest)	4m 48s
tests / py311 (ubuntu-latest)	3m 31s
tests / py311-online (windows-latest)	5m 4s
tests / py310 (macos-latest)	3m 40s
tests / py310-oldestdeps (ubuntu-latest)	3m 10s
docs / build_docs-notebooks (ubuntu-latest)	4m 32s
allowed-fail-tests / py311-devdeps (ubuntu-latest)	4m 4s
publish	0s
notify	5s
	29m 27s

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