Add ProxySettingPolicy API and CRDs

[ciarams87]

Proposed changes

Problem: We need to define the ProxySettingPolicy API and CRDs

Solution: Add ProxySettingPolicy API and CRDs

Testing: Describe any testing that you did.

Closes #4260

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

Release notes

If this PR introduces a change that affects users and needs to be mentioned in the release notes,
please add a brief note that summarizes the change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.06%. Comparing base (e150378) to head (176aee4).
⚠️ Report is 1 commits behind head on feat/proxy-settings-policy.

Additional details and impacted files

@@                      Coverage Diff                       @@
##           feat/proxy-settings-policy    #4266      +/-   ##
==============================================================
- Coverage                       86.11%   86.06%   -0.05%     
==============================================================
  Files                             132      132              
  Lines                           14342    14342              
  Branches                           35       35              
==============================================================
- Hits                            12350    12344       -6     
- Misses                           1789     1793       +4     
- Partials                          203      205       +2     

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[bjee19]

besides one comment, 🚀 !