Implement full_like, ones_like, and zeros_like for XTensorVariables

[ricardoV94]

#1514 had the wrong base branch

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📚 Documentation preview 📚: https://pytensor--1519.org.readthedocs.build/en/1519/

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.04%. Comparing base (815671d) to head (da85240).
⚠️ Report is 110 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1519   +/-   ##
=======================================
  Coverage   82.03%   82.04%           
=======================================
  Files         231      231           
  Lines       52350    52364   +14     
  Branches     9215     9217    +2     
=======================================
+ Hits        42946    42962   +16     
+ Misses       7095     7094    -1     
+ Partials     2309     2308    -1     

Files with missing lines	Coverage Δ
pytensor/xtensor/shape.py	80.37% <100.00%> (+0.90%)	⬆️

... and 1 file with indirect coverage changes

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