Report gui::DisplayInfo to clients with window info changes

InputFlinger needs to know specifications about displays such as
orientation and projection from SurfaceFlinger to support the
MotionEvent#getRaw API, which returns coordinates in logical display
space at the moment.

The DisplayInfo is added only to support input dispatching, and it
should not be used by other clients.

Bug: 179274888
Test: presubmit
Test: manual, ensure input works
Change-Id: Ieb50e53ff09cd2d920f5119a672c0895dc0b8789