[BUGFIX] Loading basis set data for larger elements

[obliviateandsurrender]

Context: Downloading basis set data for elements that had SPD-type orbitals raised an error, this PR fixes that.

Description of the Change: Accounts for the SPD-type orbitals in the orbital_map for the load_basisset function.

Benefits: Molecules with such elements can now be built.

Possible Drawbacks: N/A

Related GitHub Issues: N/A

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

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[soranjh]

Thanks @obliviateandsurrender, looks good.

[austingmhuang]

Looks good to me! Just curious how come we didn't catch this bug earlier? Incomplete test cases?

[obliviateandsurrender]

@austingmhuang we recently started supporting elements beyond the second period which was tested. I tested it for larger basis sets for those elements (which is more expected), so this particular edge case with STO-3G kind of slipped through.