TEST: Allow SVD columns to flip sign #3405
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@@ Coverage Diff @@
## master #3405 +/- ##
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Coverage 65.21% 65.21%
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Files 307 307
Lines 40474 40474
Branches 5351 5351
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Hits 26395 26395
Misses 13004 13004
Partials 1075 1075
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Debian's updating LAPACK to 3.10 revealed that we weren't handling sign flips for CompCor components.
This patch is split into two components, one cleaning up the test so we can use
np.allclose, and the other switching to and validating an allclose that tolerates sign flips of entire columns, but not arbitrary sign flips.Closes #3382.