Introducing a SliderHapticsViewModel for haptics in Compose sliders.

The view-model integrates the stack of components needed for slider
haptics in composable slider UIs.

Test: atest SliderHapticsViewModelTest
Flag: NONE usage of the view-model will be flagged separately
Bug: 341968766
Change-Id: I3b4ffee54b3c3f85798bc9f782f86b2605b60c79