quiethours: fix vibration logic

While QuietHours have different modes for haptic feedback and vibration, indeed
both uses the underlying VibratorService. This change adds some basic logic to
detect what quiethours mode should be applied to block access to vibrate calls
during quiethours.

This patch assumes:

1.- Single pattern vibrate calls are treated as haptic feedback if milliseconds
vibration is lower than 70 milliseconds
2.- Multiple pattern vibrate calls are treated as haptic feedback if the total
duration of the pattern is lower than 70 milliseconds and they doesn't need to
be repeated.

JIRA: NIGHTLIES-175
https://jira.cyanogenmod.org/browse/NIGHTLIES-175
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>

Change-Id: I0d090ca1189a5d132bf6a835e9921cf41e02d1fb