Move tests to unit folder

[liamhuber]

Moving files around to comply with the centralized CI pattern of

tests/
 |-- benchmark/
 |-- integration/
 |-- unit/

Here, I just moved them all into unit. I only skimmed them very quickly, but that seemed reasonable. The whole suite only takes 13s to run on my computer, which further supports that none of these need to be in integration.

I also touched up one deprecation error, where protocol.utils.misc was running from inpsect import getargspec. I just updated this to getfullargspec and ignored the additional return values by throwing them to _.

[coveralls]

Pull Request Test Coverage Report for Build 4919878412

• 1 of 2 (50.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 13.684%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pyiron_contrib/protocol/utils/misc.py	1	2	50.0%

Totals
Change from base Build 4919572529:	0.0%
Covered Lines:	1693
Relevant Lines:	12372

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💛 - Coveralls