Streamline adding a new dataset (#135) #74

Job	Run time
Julia 1 - windows-latest - x64 - push	4m 30s
Julia lts - ubuntu-latest - x64 - push	1m 50s
Julia 1 - macOS-latest - aarch64 - push	2m 29s
Julia 1 - ubuntu-latest - x86 - push	4m 18s
Julia 1 - windows-latest - x86 - push	5m 14s
Julia min - ubuntu-latest - x64 - push	2m 8s
Julia pre - ubuntu-latest - x64 - push	3m 19s
Julia 1 - ubuntu-latest - x64 - push	3m 19s
	27m 7s

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