refactor(rust): Expose many more function expressions to python IR

[wence-]

This covers the remaining "easy" ones where we just need to pass names and some trivial information through.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 61 lines in your changes missing coverage. Please review.

Project coverage is 80.32%. Comparing base (9833887) to head (91c500c).
Report is 7 commits behind head on main.

Files	Patch %	Lines
.../polars-python/src/lazyframe/visitor/expr_nodes.rs	0.00%	61 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #18317      +/-   ##
==========================================
- Coverage   80.35%   80.32%   -0.04%     
==========================================
  Files        1501     1501              
  Lines      199214   199262      +48     
  Branches     2837     2837              
==========================================
- Hits       160087   160065      -22     
- Misses      38599    38671      +72     
+ Partials      528      526       -2     

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