Add OutcarCollectError and catch it in Vasp.collect

[pmrv]

If an OUTCAR is present but does not contain NIONS the collect method breaks the Outcar objects raises an unexpected ValueError.

This changes the error to a more specific one and correctly catches the error during collect.

[coveralls]

Pull Request Test Coverage Report for Build 9225178252

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

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Details

• 7 of 8 (87.5%) changed or added relevant lines in 2 files are covered.
• 3320 unchanged lines in 63 files lost coverage.
• Overall coverage decreased (-22.2%) to 71.043%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pyiron_atomistics/vasp/base.py	4	5	80.0%

Files with Coverage Reduction	New Missed Lines	%
pyiron_atomistics/sphinx/potential.py	1	66.67%
pyiron_atomistics/atomistics/structure/analyse.py	1	97.67%
pyiron_atomistics/atomistics/generic/object_type.py	1	58.62%
pyiron_atomistics/init.py	1	93.33%
pyiron_atomistics/atomistics/job/interactivewrapper.py	1	72.73%
pyiron_atomistics/atomistics/structure/phonopy.py	1	85.71%
pyiron_atomistics/sphinx/util.py	2	90.38%
pyiron_atomistics/vasp/parser/report.py	2	52.0%
pyiron_atomistics/lammps/units.py	2	97.18%
pyiron_atomistics/atomistics/structure/atom.py	2	96.3%

Totals
Change from base Build 8737261842:	-22.2%
Covered Lines:	10638
Relevant Lines:	14974

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💛 - Coveralls

[jan-janssen]

Looks good to me, still having a short test for this error would be great.

[jan-janssen]

Looks good to me