Introduce lambda-based modifiers

This CL introduces some lambda-based modifiers to change the alpha,
paddings or size of a Composable without triggering recomposition when
those values change. This is especially useful when animating these
values, which happens a lot in the SystemUI shade given that a lot of
components size/alpha is driven by touch gestures.

Test: Manual
Bug: 247473910
Change-Id: If63d302dcad5ad753b4ebf90ed239e598baa55c1
2 files changed