Split config mod tests into new test mod

This MR moves the tests of gwdatafind_server.config functions into a new test_config.py module.

changed milestone to %GWDataFind Server 1.2.0

requested review from @duncan.meacher

assigned to @duncan.meacher

added gwdatafind_server.config label

added 5m of time spent

added 3 commits

• 679f022b...bfeacd6c - 2 commits from branch computing/gwdatafind:master
• 491a2cc1 - tests: split config mod tests into new test mod

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added 1 commit

• 9a8d762e - tests: split config mod tests into new test mod

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added 3 commits

• 9a8d762e...bfeacd6c - 2 commits from branch computing/gwdatafind:master
• ca0075c8 - tests: split config mod tests into new test mod

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approved this merge request

merged

mentioned in commit 83129ad0