Implement moving platforms

[Zerokami]

https://github.com/RodZill4/godot-platform2d

This plugin has moving platforms. Maybe this could be implemented in the platform_template

[henriiquecampos]

Can you add a .gif of the moving platforms? I've implemented some a while ago, but they were really bad implemented, And for horizontal movement they didn't work.

Also, I think will be better to wait 3.1 for that, they made a better implementation of KinematicBody physics.

https://godotengine.org/article/godot-31-will-get-many-improvements-kinematicbody

[Zerokami]

Oh! I remember reading that 3.1 is gonna get this.

I agree that it's better to wait.