Consolidating fields and some more apptools coverage.

[cmhamel]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 77.50000% with 36 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.47%. Comparing base (71fa9bd) to head (98ab898).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/Fields.jl	77.21%	36 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #285      +/-   ##
==========================================
+ Coverage   61.99%   65.47%   +3.48%     
==========================================
  Files          59       54       -5     
  Lines        4449     4452       +3     
==========================================
+ Hits         2758     2915     +157     
+ Misses       1691     1537     -154     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.