Add field to TableFieldInfo

[hyperrealist]

Closes #107

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.47%. Comparing base (75f4f57) to head (913ccb1).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #117   +/-   ##
=======================================
  Coverage   97.47%   97.47%           
=======================================
  Files          12       12           
  Lines        1229     1230    +1     
=======================================
+ Hits         1198     1199    +1     
  Misses         31       31           

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[coretl]

Merge when docs added