Display anomaly in battery usage page

This cl adds a new parameter, mAnomalies, for
AdvancedPowerUsageDetail.

If it is null, fragment will start AnomalyLoader to detect anomaly.
If not null, just display the anomaly.

Bug: 36925180
Test: RunSettingsRoboTests

Change-Id: I572bc5954c1cdb210d18b6dbe1ab9dba25c0a61f