move some of the Validators to an ExtraValidators file

[phlptp]

Rework some of the validator locations, add documentation, and fix some lingering issues with validators.
The extra will will enable additions of some new validators and reduce compile times for those that are not needed.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (e4ee3af) to head (4b5af60).
⚠️ Report is 114 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##              main     #1192     +/-   ##
===========================================
  Coverage   100.00%   100.00%             
===========================================
  Files           17        19      +2     
  Lines         4546      5193    +647     
  Branches         0      1062   +1062     
===========================================
+ Hits          4546      5193    +647     

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[phlptp]

Will Fix #1191

[phlptp]

@henryiii I think you are going to need to modify the codacy configuration on their website, I don't think I can fix the false positives on codacy in a configuration, so that will need to be handled by the administrator of the codacy configuration, which I think is you. I think we might want to just disable cppcheck on codacy, I am not seeing it providing much value over the other static checking we are doing.

[phlptp]

@henryiii This change will allow us to add some additional validators in a way that doesn't impact compile time unless they are needed. Also adds some additional documentation on custom validators that has been requested.