Django-vectortiles

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**Bugfixes**

- Fix `get_url` view method. Use class name in lower format as default prefix.

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**Breaking changes**

* Refactor PostGIS and Python (old named MapBox) backends usage. Use setting to set (default postgis)
* No DetailView anymore. As Tile can have many layers, declare VectorLayer on MVTView (one or many).

**Enhancements**

* Add compatibility to use with psycopg v3
* Drop python 3.6 and Django 2.2, 3.2
* Add python 3.11, 3.12 and Django 4.2, 5.0, 5.1

* Features

* Native MVTRenderer for django-rest-framework

* Quality

* Black-ified
* iSort-ed

* Documentation

* Add DRF and MapLibre examples

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* Possibly breaking change:
* Base Mixin method get_tile use now class attributes for extent / buffer or clip_geom. Remove this parameters in your sub class method if needed.

* Bug fixes:
* Correct usage for vector_tile_extent / vector_tile_buffer and vector_tile_clip_geom
* Clipped geom is now working for mapbox

* Support Python 3.10 and django 4.1

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First beta release

* Add attribute to limit features in tile (unable to use a sliced queryset)

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* Delete useless Envelope transformation because django implicitly transform on intersects lookup (thanks to StefanBrand)
* Avoid useless queryset evaluation in some cases (thanks to StefanBrand)

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* Fix required 'fields' key in tilejson. Will be filled later
* Fix generated subquery to deal with DateField (thanks to StefanBrand)