open Māori names csv file with utf-8 encoding

[chrisdicaprio]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.17%. Comparing base (63110b9) to head (d11a508).
Report is 2 commits behind head on pre-release.

Additional details and impacted files

@@             Coverage Diff              @@
##           pre-release      #59   +/-   ##
============================================
  Coverage        98.17%   98.17%           
============================================
  Files               17       17           
  Lines              328      328           
  Branches            61       61           
============================================
  Hits               322      322           
  Misses               3        3           
  Partials             3        3           

Flag	Coverage Δ
unittests	98.17% <100.00%> (ø)

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[chrisbc]

thanks @chrisdicaprio