Moved panel expansion classes to shade package

Renamed PanelExpansion... to ShadeExpansion..., and refactored accordingly. Cleaned up wildcard imports in UdfpsControllerOverlayTest to pass ktlint.

Test: presubmits
Bug: 247607270
Change-Id: I7a112a7426ed357b036dd01a00e9caf63dd5897b
Merged-In: I7a112a7426ed357b036dd01a00e9caf63dd5897b
45 files changed