ENH: Catch SVD failure and raise informative HeaderDataError

[effigies]

This is mostly targeted at improving logging when an SVD failure arises. We may also want to consider using scipy's SVD when scipy is available, as that allows the option for using the slower but less finicky gesvd algorithm.

No urgency on this, just want to make a patch available to inject into a container.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 92.15%. Comparing base (c0be346) to head (5827168).
Report is 503 commits behind head on master.

Files with missing lines	Patch %	Lines
nibabel/nifti1.py	50.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1227   +/-   ##
=======================================
  Coverage   92.15%   92.15%           
=======================================
  Files          97       98    +1     
  Lines       12281    12375   +94     
  Branches     2525     2543   +18     
=======================================
+ Hits        11317    11404   +87     
- Misses        647      648    +1     
- Partials      317      323    +6     

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