Introduce HapticFeedbackConstants.TEXT_HANDLE_MOVE

This CL	introduces a new haptic feedback type for the scenario where
the user is manually moving the text insertion/selection handle on the
touch devices such as touch screen.

Having a dedicated constant is necessary for device-wide consistency and
flexibility to fine tune the feedback in future.

Bug: 62454887
Bug: 62487772
Fixes: 62486763
Test: Confirmed that View#performHapticFeedback() with this constant
      triggers vibration.
Change-Id: I25841f20c3b8dbf0e9dabe75227c41d954193d33
2 files changed