Compute omitted "@id" value in term definitions when possible.

[dlongley]

Addresses #106.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.17%. Comparing base (7640e1e) to head (24c81ca).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #107      +/-   ##
==========================================
+ Coverage   91.94%   92.17%   +0.22%     
==========================================
  Files          35       35              
  Lines        2668     2682      +14     
==========================================
+ Hits         2453     2472      +19     
+ Misses        215      210       -5     

Files with missing lines	Coverage Δ
lib/ActiveContext.js	98.52% <100.00%> (+0.07%)	⬆️
lib/ContextLoader.js	89.37% <100.00%> (+3.12%)	⬆️

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[BigBlueHat]

Not familiar with this code so didn't/can't thoroughly review it, but the tests pass and it addresses my situation in #106.

Thank you!