Issue #3046530 by Pancho, wizonesolutions: [8.x-5.x] Add experimental sub-module to switch between BC and Next API

Issue #3046257 by Pancho, wizonesolutions: Move EntityHelper::getFormFields() to the actual FillPdfForm entity and deprecate the 'fillpdf.entity_helper' service

Issue #3045717 by Pancho: Fix validation and add tests for subdirectory creation on FillPdfSettingsForm

Issue #3040903 by Pancho: Offer all available file schemes, but only those, preselecting the site default

Followup to: Issue #3043010 by Pancho: Split AdminIdTest to TemplateUploadTest and FillPdfOverviewFormTest preserving history

Issue #3043010 by Pancho: Split AdminIdTest to TemplateUploadTest and FillPdfOverviewFormTest preserving history (4)

Issue #3043010 by Pancho: Split AdminIdTest to TemplateUploadTest and FillPdfOverviewFormTest preserving history (3)

Issue #3043010 by Pancho: Split AdminIdTest to TemplateUploadTest and FillPdfOverviewFormTest preserving history (2)

Issue #3043010 by Pancho: Split AdminIdTest to TemplateUploadTest and FillPdfOverviewFormTest preserving history (1)

Issue #3040790 by Pancho: FillPdfFormForm::validateForm() throws exception when used programmatically

Issue #3038922 by Pancho: Split Webform tests to their own class, removing own uploadNodeImage() implementation

I guess a couple things were removed from the Webform schema or something.