TextView text selection interaction logging.

TODO: Log typing over selection

Bug: 64914512
Test: bit FrameworksCoreTests:android.widget.TextViewActivityTest
Test: bit CtsWidgetTestCases:android.widget.cts.TextViewTest
Test: bit CtsAccessibilityServiceTestCases:android.accessibilityservice.cts.AccessibilityTextTraversalTest

Merged-In: Icc9d5b542140bdb01b2ad4211048bd83eae2ce83
Change-Id: Icc9d5b542140bdb01b2ad4211048bd83eae2ce83