Added test of AccessibilityService for multi-display

Tests if the callback of onGesture(AccessibilityGestureInfo) works well

Test: AccessibilityGestureDetectorTest
Test: AccessibilityGestureInfoTest
Bug: 133290787
Change-Id: Ic2a98d07dc3049dbe3bb26c8084a7048f43e0bc1
3 files changed