Fix some invalid `int` property ranges
This allows changing the display colour of a CollisionShape3D node on a per-shape basis. It also adds the ability to display a solid coloured preview of a CollisionShape3D. Closes https://github.com/godotengine/godot-proposals/issues/906
int
* `HeightMapShape3D` had ranges configured for `float` instead of `int` * Particles had `amount` that used `exp` which is not supported, added note
Adds HeightMapShape3D update with Image data.
