Support XOR expressions

[dweindl]

Replace XOR by OR (-> #2685).

Tested via sbml semantic test cases 201, 279, 957, 958, 1112-1115, 1486, 1489-1491, 1503, 1531.

[codecov]

Codecov Report

Attention: Patch coverage is 28.57143% with 5 lines in your changes missing coverage. Please review.

Project coverage is 77.91%. Comparing base (ffe2dc9) to head (2cb4fad).

Files with missing lines	Patch %	Lines
python/sdist/amici/import_utils.py	33.33%	4 Missing ⚠️
python/sdist/amici/sbml_import.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2699   +/-   ##
========================================
  Coverage    77.91%   77.91%           
========================================
  Files          326      326           
  Lines        22999    23004    +5     
  Branches      1479     1479           
========================================
+ Hits         17920    17924    +4     
- Misses        5068     5069    +1     
  Partials        11       11           

Flag	Coverage Δ
cpp	74.76% <28.57%> (-0.01%)	⬇️
cpp_python	33.57% <14.28%> (-0.01%)	⬇️
petab	39.42% <14.28%> (-0.02%)	⬇️
python	72.95% <28.57%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
python/sdist/amici/sbml_import.py	78.72% <0.00%> (-0.02%)	⬇️
python/sdist/amici/import_utils.py	81.44% <33.33%> (-1.54%)	⬇️

... and 3 files with indirect coverage changes

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