ComputerControl display creation and screenshot API

Create the display with dimensions equal to the default display.
Create the surface in the client process and provide an API to get
screenshots.

Only if the client didn't provide a surface to keep the old flow.

Fix: 439774796
Test: atest & presubmit
Flag: android.companion.virtualdevice.flags.computer_control_access
Change-Id: I67c3578a2233efaecff94cc52e5b3c6a501a96b0