[Feature request] Add more Slider configurations

[CatchABus]

Please Describe The Problem To Be Solved

• There are cases when one might need slider to be vertical (changing angle breaks other things)
• Slider does not support steps as described in #37

(Optional): Suggest A Solution I imagine a type property for slider orientation would do. Then, a step property with default value of 1 to maintain backwards compatibility.

If the team is open to these features, I could create PRs for the things mentioned above.