🛠 Move CI to Github actions

[browniebroke]

• Add missing workflow for releasing
• Send coverage report in GH actions
• Remove Travis & Azure pipelines

[codecov]

Codecov Report

Merging #86 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #86   +/-   ##
=======================================
  Coverage   92.01%   92.01%           
=======================================
  Files           4        4           
  Lines         238      238           
  Branches       29       29           
=======================================
  Hits          219      219           
  Misses         15       15           
  Partials        4        4           

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