Add new VirtualNavigationTouchpad.

The new virtual navigation touchpad can be used by connected devices that offer touch navigation through a touchpad. More details of implementation in the design doc below.

Design doc: http://go/virtual-touchpad
Test: atest cts/tests/tests/hardware/src/android/hardware/input/cts/tests/VirtualNavigationTouchpadTest, atest frameworks/native/services/inputflinger/tests/InputReader_test.cpp
Bug: 252767726

Change-Id: Ia4fdced1837c91d1534a6248d6d41d175a472fae