Add PEtab math parser and sympy converter

[dweindl]

Related to PEtab-dev/PEtab#579

• ANTLR grammar for PEtab math expressions + derived lexer/parser/visitor
• Test cases
• PEtab -> SymPy converter

Note: All sympy symbols in PEtab match expressions now have real=True.

[dweindl]

• move test cases to https://github.com/PEtab-dev/petab_test_suite
• Tests for implicit bool<->float conversion?
• Implement implicit bool<->float conversion?

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 74.28256% with 233 lines in your changes missing coverage. Please review.

Project coverage is 75.68%. Comparing base (41481bb) to head (18c59e4).

Files	Patch %	Lines
petab/math/_generated/PetabMathExprParser.py	73.06%	140 Missing and 34 partials ⚠️
petab/math/SympyVisitor.py	69.23%	19 Missing and 21 partials ⚠️
...etab/math/_generated/PetabMathExprParserVisitor.py	61.36%	16 Missing and 1 partial ⚠️
petab/math/_generated/PetabMathExprLexer.py	96.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #260      +/-   ##
===========================================
- Coverage    76.12%   75.68%   -0.45%     
===========================================
  Files           36       40       +4     
  Lines         3238     4137     +899     
  Branches       785      891     +106     
===========================================
+ Hits          2465     3131     +666     
- Misses         568      744     +176     
- Partials       205      262      +57     

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[dilpath]

👍 Looks like a nice design, thanks for setting this up. I didn't check _generated much.

This math parsing code is generally unfamiliar to me, but I didn't see anything obviously wrong, and I'm happy with the tests.

[dweindl]

I didn't check _generated much.

Good. That's auto-generated and not really meant to be read.

[dilpath]

👍