Enable cursor to transition across multiple displays

This CL enables cursor to move between displays. It uses a fake
topology that assumes all available displays are connected in the
following order:
default-display (top-edge) -> next-display (right-edge)
                           -> next-display (right-edge) ...

Test: presubmit
Bug: 367659738
Bug: 367660694
Flag: com.android.input.flags.connected_displays_cursor
Change-Id: Iff2b9eea52714fec00eadb64b0014df6e7c65916