Prototype and prototype dispatcher test suites

[0--key]

Test suite expanding with backward compatibility, of cause.

[codecov-io]

Codecov Report

Merging #179 into master will increase coverage by 0.07%.

@@            Coverage Diff             @@
##           master     #179      +/-   ##
==========================================
+ Coverage   94.38%   94.46%   +0.07%     
==========================================
  Files          52       55       +3     
  Lines        2244     2312      +68     
==========================================
+ Hits         2118     2184      +66     
- Misses        126      128       +2

Impacted Files	Coverage Δ
tests/test_state.py	100% <ø> (ø)	✅
behavioral/command.py	100% <100%> (ø)	✅
tests/test_prototype.py	100% <100%> (ø)
tests/test_decorator.py	100% <100%> (ø)
behavioral/observer.py	96.55% <100%> (ø)	✅
structural/facade.py	100% <100%> (ø)	✅
behavioral/state.py	100% <100%> (ø)	✅
tests/test_lazy.py	100% <100%> (ø)	✅
creational/lazy_evaluation.py	96.66% <100%> (+0.11%)	✅
tests/test_facade.py	88.23% <88.23%> (ø)
... and 3 more

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