Client-side Python components using PyScript

[Archmonger]

Description

PyScript is fully functional using the standard pyodide interpreter.

• Client-side Python components can now be rendered via the new {% pyscript_component %} template tag
  • You must first call the {% pyscript_setup %} template tag to load PyScript dependencies
• Client-side components can be embedded into existing server-side components via reactpy_django.components.pyscript_component.
• Tired of writing JavaScript? You can now write PyScript code that runs directly within client browser via the reactpy_django.html.pyscript element.
  • This is a viable substitution for most JavaScript code.

A follow up PR will be required for a few things:

1. Port reactpy to be micropython compatible.
2. Support a fully local pyodide interpreter.

Checklist

Please update this checklist as you complete each item:

• Tests have been developed for bug fixes or new functionality.
• The changelog has been updated, if necessary.
• Documentation has been updated, if necessary.
• GitHub Issues closed by this PR have been linked.

_{By submitting this pull request I agree that all contributions comply with this project's open source license(s).}