Use Matrix4 tranformation for `Camera.apply` (#840)

* Added Matrix4 extension

* Added unit tests for Matrix4 extension class

* Update doc/util.md

Co-authored-by: Lukas Klingsbo <lukas.klingsbo@gmail.com>

* Updated code

* Updated docs

* Update

* Update Matrix4

* Added Translate method

* Update based on Luan and Spydon review

* Update after review

* Forgot few changes

* Update

* Use Matrix4 tranformation for `Camera.apply`

* Remove accidentally added zoom

* Add transform to MockCanvas

* Use same Matrix4 if nothing changed

Co-authored-by: Jochum van der Ploeg <jochum@vdploeg.net>