OpenSystemsDevelopment / qpdf

Utilize the GNUTLS_FIPS140_LAX around MD5 initialization.

Refactor: use local static variable for JSON schema in `initializeFro…

…remove unused global variable `JOB_SCHEMA`.

Since QPDFCrypto_gnutls is a short-lived object, it makes sense
to store the current FIPS mode value, set mode to LAX and restore
the original mode in the destructor.

If FIPS is not enabled the behavior should remain unchanged.

Fixes #1566.

Refactor QPDFFormFieldObjectHelper

…th `DV` and `default_value` methods. Simplify logic, improve clarity, and update references.

…lue` for clarity, consistency, and improved readability. Update references and method documentation accordingly.

…streamline logic, update references, and improve method documentation.

…ernativeName`, and `getMappingName` with streamlined implementations using `fully_qualified_name`, `partial_name`, `alternative_name`, and `mapping_name`. Simplify logic and enhance consistency across methods.

…` with `FT` method, streamline logic, and update related references for clarity and consistency.

…le_string` method for clarity, consistency, and improved readability.

…for flexibility and consistency across FormField methods. Adjust related method implementations accordingly.

…ntation, and update references in `FormField` methods.

…consistency, and update QPDFFormFieldObjectHelper accordingly.

Refactor private-API dictionary methods

… for clarity and consistency across dictionary operations.

Remove implementation detail from QPDFFormFieldObjectHelper.hh

…tionary, modernize constructors, and clean up null handling logic.

…up method implementations, and simplify member handling.

…ed_ptr and forward declaration.

Add `nullify` method to `BaseHandle` for setting objects to a mutable…

Add private-API Null class

…ent and simplified temporary null management. Clean up unused test coverage markers.

…ent and simplified temporary null management. Clean up unused test coverage markers.

Prevent infinite recursion in /AcroForm traversal by checking for sel…

Refactor integer handling and type conversions

Simplify integer value retrieval by introducing a templated `value` method in the `Integer` class. Replace redundant exception handling logic across multiple functions with this unified approach. Streamline type conversions and improve readability.

Refactor Stream factories

…arameters with their existing empty values.

…e parameters with their existing values.

Refactor QPDFFormFieldObjectHelper and QPDFEFStreamObjectHelper

…ng handling with `qpdf::String`, and clean up `Members` class implementation.