[TEST] Adding Azure Pipelines

[rmarkello]

First pass at adding Azure pipelines for CI testing on Windows

[codecov]

Codecov Report

Merging #141 into master will increase coverage by 0.05%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #141      +/-   ##
==========================================
+ Coverage   90.23%   90.29%   +0.05%     
==========================================
  Files          32       32              
  Lines        2028     2029       +1     
==========================================
+ Hits         1830     1832       +2     
+ Misses        198      197       -1

Impacted Files	Coverage Δ
abagen/tests/datasets/test_utils.py	100% <100%> (ø)	⬆️
abagen/tests/cli/test_run.py	100% <100%> (ø)	⬆️
abagen/tests/conftest.py	100% <0%> (+7.69%)	⬆️

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