LikelihoodRatioTest extends StatsAPI.HypothesisTest

[palday]

Closes #683

• add entry in NEWS.md
• after opening this PR, add a reference and run docs/NEWS-update.jl to update the cross-references.
• I've bumped the version appropriately

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.33%. Comparing base (7b37191) to head (b91b75a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #814   +/-   ##
=======================================
  Coverage   97.33%   97.33%           
=======================================
  Files          36       36           
  Lines        3490     3495    +5     
=======================================
+ Hits         3397     3402    +5     
  Misses         93       93           

Flag	Coverage Δ
current	96.99% <100.00%> (+<0.01%)	⬆️
minimum	97.33% <100.00%> (+<0.01%)	⬆️
nightly	96.92% <100.00%> (+<0.01%)	⬆️

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[ararslan]

Just minor comments/suggestions, otherwise looks good