feat: provide additional assertions for integers and floats

[haraldmaida]

Added assertions for integer and floats:

is_negative, is_not_negative, is_positive, is_not_positive, is_zero, is_one

Added assertions for floats:

is_infinite, is_finite, is_not_a_number, is_a_number

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.15%. Comparing base (c75cc7e) to head (deb01ca).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #17      +/-   ##
==========================================
+ Coverage   93.62%   94.15%   +0.53%     
==========================================
  Files          22       24       +2     
  Lines        2038     2224     +186     
  Branches     2038     2224     +186     
==========================================
+ Hits         1908     2094     +186     
  Misses        124      124              
  Partials        6        6              

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