Add an easing/transition type cheatsheet to the Tween documentation
Add an easing/transition type cheatsheet to the Tween documentation

Related to https://github.com/godotengine/godot-docs/pull/3403.

(cherry picked from commit 5972a9138ebfd34401067b1f1b27efc923a21d2a)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot