Add support for annotation-based exemptions

[rbren]

No description provided.

[claassistantio]

All committers have signed the CLA.

[codecov]

Codecov Report

Merging #227 into master will increase coverage by 0.16%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #227      +/-   ##
==========================================
+ Coverage   78.94%   79.11%   +0.16%     
==========================================
  Files          12       12              
  Lines         760      766       +6     
==========================================
+ Hits          600      606       +6     
  Misses        135      135              
  Partials       25       25

Impacted Files	Coverage Δ
pkg/validator/controller.go	92% <100%> (+2.52%)	⬆️

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