Allow configurable ORCA output extensions

[t-young31]

Resolves #322

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Checklist

• The changes include an associated explanation of how/why
• Test pass
• Documentation has been updated
• Changelog has been updated

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.44%. Comparing base (7bf8214) to head (61b5a62).

❗ Current head 61b5a62 differs from pull request most recent head e9f339d. Consider uploading reports for the commit e9f339d to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           v1.4.2     #323   +/-   ##
=======================================
  Coverage   97.44%   97.44%           
=======================================
  Files         209      209           
  Lines       23746    23747    +1     
=======================================
+ Hits        23140    23141    +1     
  Misses        606      606           

Flag	Coverage Δ
unittests	97.44% <100.00%> (+<0.01%)	⬆️

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[shoubhikraj]

Looks good 👍