Make intrinsic functions configurable

[kddejong]

Issue #, if available:

Description of changes:

• Add jsonschema keyword to cfnContext to flip context information
• Add jsonschema keyword to dynamicValidation to validate values against dynamic information
• Add default to registry schemas CLI parameter

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.24%. Comparing base (da5163c) to head (e413730).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4129      +/-   ##
==========================================
- Coverage   94.26%   94.24%   -0.02%     
==========================================
  Files         396      396              
  Lines       13455    13443      -12     
  Branches     2661     2672      +11     
==========================================
- Hits        12683    12669      -14     
- Misses        419      425       +6     
+ Partials      353      349       -4     

Flag	Coverage Δ
unittests	94.22% <100.00%> (-0.03%)	⬇️

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