Enhance django.shortcuts.redirect with two new types of redirect response codes

[Lorenzo Peña]

Other than 301 and 302 response codes for redirects, there is also:

• ​https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/307
• ​https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/308

Currently, Django is unaware of these.

Proposal:

• Add two new HTTP response classes for 307 and 308.
• Enhance django.shortcuts.redirect with a new keyword argument preserve_method that, in combination with the existing permanent, decides which of the four redirect classes to use.

[Lorenzo Peña]

​https://github.com/django/django/pull/18616

Proof of concept until the ticket itself is approved. After that tests and documentation will be updated.