BZZZZZZT! BZZZZZT! New Vibrator APIs

Replace the existing Vibrator APIs with a new class to encapsulate the
haptic effect information, and add the ability to control the vibration
strength.

Test: cts-tradefed run commandAndExit cts-dev -m CtsOsTestCases -t android.os.cts.VibratorTest
      cts-tradefed run commandAndExit cts-dev -m CtsOsTestCases -t android.os.cts.VibrationEffectTest
      runtest systemui-notification
      Manual testing with $T/google_experimental/users/michaelwr/Vibrator

Bug: 30961353

Change-Id: Idbb9864a7b084c85e7b7de3257a0e6b40d9d91d6