Fix 'process.__array_wrap__', causing failing tests with numpy versions >= 1.16.0

[m-cip]

Fixes #11.

[codecov-io]

Codecov Report

Merging #12 into master will increase coverage by <.01%.
The diff coverage is 82.35%.

@@            Coverage Diff             @@
##           master      #12      +/-   ##
==========================================
+ Coverage   91.57%   91.58%   +<.01%     
==========================================
  Files           7        7              
  Lines        1875     1877       +2     
  Branches      271      272       +1     
==========================================
+ Hits         1717     1719       +2     
  Misses         96       96              
  Partials       62       62

Impacted Files	Coverage Δ
sdepy/infrastructure.py	88.75% <82.35%> (+0.02%)	⬆️

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