Feature/glassbox and find free port test utils

[nicmunroe]

No description provided.

[codecov]

Codecov Report

Merging #60 (320cc44) into main (d8b5ef3) will decrease coverage by 0.07%.
The diff coverage is 90.90%.

@@             Coverage Diff              @@
##               main      #60      +/-   ##
============================================
- Coverage     96.53%   96.46%   -0.08%     
- Complexity      931      939       +8     
============================================
  Files            86       88       +2     
  Lines          2455     2488      +33     
  Branches        398      400       +2     
============================================
+ Hits           2370     2400      +30     
- Misses           56       59       +3     
  Partials         29       29              

Impacted Files	Coverage Δ
...java/com/nike/internal/util/testing/TestUtils.java	60.00% <60.00%> (ø)
.../java/com/nike/internal/util/testing/Glassbox.java	96.42% <96.42%> (ø)

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