Page Break fields now checks for conditional logic and exclude class

[jakejackson1]

Description

Resolves #1463

Screenshots

Checklist:

• [x] I've tested the code.
• [x] My code is easy to read, follow, and understand
• [ ] My code follows the accessibility standards.
• [x] My code has proper inline documentation / docblocks.

Additional Comments

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 62.00000% with 19 lines in your changes are missing coverage. Please review.

Project coverage is 73.94%. Comparing base (f5d3b8b) to head (8472b0f).

Files	Patch %	Lines
src/Model/Model_PDF.php	33.33%	16 Missing :warning:
src/Helper/Fields/Field_Page.php	85.71%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## development #1467 +/- ## =============================================== - Coverage 73.96% 73.94% -0.03% =============================================== Files 190 191 +1 Lines 11409 11453 +44 =============================================== + Hits 8439 8469 +30 - Misses 2970 2984 +14 ```

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