feat: expectation combinators All and Any

[haraldmaida]

Projects might want to write custom expectations by combining multiple existing expectations with logical operators. This can be achived by providing expectation combinators such as All and Any.

Implemented expectation combinators All and Any. To create combined expectations the functions all() and any() are provided as a more convenient way to crate combined expectations.

[codecov]

Codecov Report

Attention: Patch coverage is 93.57798% with 7 lines in your changes missing coverage. Please review.

Project coverage is 96.30%. Comparing base (9018721) to head (6f6c1a6).

Files with missing lines	Patch %	Lines
src/expectation_combinators/mod.rs	91.13%	1 Missing and 6 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #54      +/-   ##
==========================================
- Coverage   96.31%   96.30%   -0.02%     
==========================================
  Files          31       32       +1     
  Lines        4130     4227      +97     
  Branches     4130     4227      +97     
==========================================
+ Hits         3978     4071      +93     
+ Misses        112      110       -2     
- Partials       40       46       +6     

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