Introducing BasicEnvelopeBuilder to VibrationEffect

We’re introducing a new parcelable BasicPwleSegment and VibrationEffect.startBasicEnvelope() method which returns a BasicEnvelopeBuilder allowing the creation of normalized PWLE effects with varying intensity and sharpness.

Bug: 347035826
Fix: 347035624
Fix: 347030924
Flag: android.os.vibrator.normalized_pwle_effects
Test: atest FrameworksVibratorCoreTests

Change-Id: I979e9dea21afd5d680e30848c1e6cc3a0d2050e5