Separate validation of the integer type schema from the number type schema

[trusta]

Separate the integer type and the number type in validation of all parameters.

[trusta]

@daveshanley How can I trigger a Codecov Report?

[codecov]

Codecov Report

Attention: Patch coverage is 57.02479% with 52 lines in your changes missing coverage. Please review.

Project coverage is 94.70%. Comparing base (c322bf8) to head (e93578e).

Files with missing lines	Patch %	Lines
errors/parameter_errors.go	0.00%	48 Missing ⚠️
parameters/path_parameters.go	90.47%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #123      +/-   ##
==========================================
- Coverage   96.59%   94.70%   -1.90%     
==========================================
  Files          32       32              
  Lines        3378     3493     +115     
==========================================
+ Hits         3263     3308      +45     
- Misses        115      185      +70     

Flag	Coverage Δ
unittests	94.70% <57.02%> (-1.90%)	⬇️

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