Update CHANGELOG.md

Demo/registration (torch-points3d#369)

* add some demo on kitti

* add some texts

Update CHANGELOG.md

Created using Colaboratory

Update CHANGELOG.md

Prepare for release

Add check on gradients for model weights (torch-points3d#260)

* Stricter flake8

* Fixing all minor type errors

* Adding mypy to ci and precommits

* Fix all mypy type checks

* ME breaking flake8

* Fix unittests

* Test gradients

* Random mock datasets

Merge branch 'betterversioning' of github.com:nicolas-chaulet/deeppoi…

…ntcloud-benchmarks into betterversioning