modify documenting-your-api docs topic with additional package

added drf-flexfields addon info

Add DRF-Base64 to third-party serializers

Add DRF-Base64, which provides serializers to handle base64-encoded files, to third-party serializers packages

Add drf-schema-adapter to 3rd party metadata mods

docs: typo fix: it's -> its

* add failing testcase for breadcrumb suffixes missing when using ModelViewSets

* fix get_breadcrumbs to honor overridden get_view_name and keep viewset suffixes

* ensure suffixes are appended in breadcrumb util

The order of the line break was wrong

Add drf-oidc-auth to docs

converted authentication test asserts to pytest

Updated Link ti Django Docs

The Url to the settings/#caches Link changed in Django documentation.

Just makes the topic page easier to find.

Closes #1673

converted descriptions and ecoders test asserts to pytest

converted asserts of atomic requests and decorators tests to pytest

converted test asserts of generics-test to pytest

typo