script to help with preinstalls

[coveralls]

Pull Request Test Coverage Report for Build 4193277697

• 38 of 38 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 73.893%

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Totals
Change from base Build 4086970916:	0.1%
Covered Lines:	5992
Relevant Lines:	8109

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💛 - Coveralls

[netsettler]

This was an interesting idea but when I tried to use it in practice, it meant dcicutils had to be loaded too early. It would be better if it were its own library, but it's hardly worth the effort to do that, so with regret I'm abandoning this.