Refactor publication validation helpers to single class

[caendesilva]

There are quite a few paths and locations for validation rules and helpers making it a bit hard to get an overview on what's going on. This refactors all of that responsibility into a single class.

[codecov]

Codecov Report

Merging #800 (bd3f57a) into publications-feature (3b68dd8) will increase coverage by 0.63%.
The diff coverage is n/a.

@@                     Coverage Diff                     @@
##             publications-feature      #800      +/-   ##
===========================================================
+ Coverage                   99.36%   100.00%   +0.63%     
+ Complexity                   2860      1428    -1432     
===========================================================
  Files                         332       166     -166     
  Lines                        7204      3599    -3605     
===========================================================
- Hits                         7158      3599    -3559     
+ Misses                         46         0      -46     

Impacted Files	Coverage Δ
...c/Console/Commands/ValidatePublicationsCommand.php	100.00% <0.00%> (ø)
...k/Features/Publications/Models/PublicationType.php	100.00% <0.00%> (ø)
...Publications/Models/PublicationFieldDefinition.php	100.00% <0.00%> (ø)
...rk/src/Console/Commands/MakePublicationCommand.php
...c/Console/Commands/ValidatePublicationsCommand.php
...Publications/Models/PublicationFieldDefinition.php
...k/Features/Publications/Models/PublicationType.php
...mework/src/Framework/Services/BuildTaskService.php
...ramework/src/Console/Commands/BuildSiteCommand.php
packages/framework/src/Pages/Concerns/HydePage.php
... and 160 more

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