Nuplone

- Remove the dependency from grok
- Remove z3c.appconfig
- Remove z3c.zrtresource

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- Nothing changed yet.

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- Copy the the WysiwygWidget from plone.app.widgets 4.3 branch to NuPlone.
The widget has been deprecated since a long time and since plone.app.z3cform 4.4
it is an alias of the plone.app.z3cform.widgets.richtext.RichTextWidget.
[ale-rt]

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- Support Plone >= 6.0 and Python >= 3.9.

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- Fix an issue when we are looking up context aware vocabularies
[ale-rt]

- Fix the pat-depends condition for unequal-comparisons.
[thet, ale-rt]

- Set the pat-depends action parameter for z3c.form widgets to "both" to also
disable the input fields if they are hidden by pat-depends.
Ref: scrum-2615.
[thet]

- Provide helper methods for the widgets that can be used to render
patternslib specific markup
[ale-rt]

- The radio widgets supports rendering extended help for each option
[ale-rt]

- Revert to Patternslib 9.9.5 until 9.9.10 is released to prevent potential issues with pat-inject.
[thet]

- Update supported Python versions to match the ones supported by the latest Plone 5.2 and Plone 6.0
[ale-rt]

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- Fix missing jQuery library due to incorrect webpack configuration.
- Update to Patternslib 9.9.9.
[thet]