Create OCI layout and various OCILayoutTest cleanup

[jonesbusy]

Description

Create OCI layout and various OCILayoutTest cleanup

Testing done

CI

Submitter checklist

• I have read and understood the CONTRIBUTING guide
• I have run mvn license:update-file-header, mvn spotless:apply, pre-commit run -a, mvn clean install before opening the PR

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.78%. Comparing base (5288d77) to head (2c010fb).
Report is 2 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #205      +/-   ##
============================================
+ Coverage     84.77%   84.78%   +0.01%     
  Complexity      408      408              
============================================
  Files            33       33              
  Lines          1379     1380       +1     
  Branches        148      148              
============================================
+ Hits           1169     1170       +1     
  Misses          141      141              
  Partials         69       69              

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