Top level screen for App Fuel Gauge.

Shows sorted list of power usage (with some debug information) by the top 10
apps and subsystems. Doesn't yet take into account certain subsystems such
as data network usage, audio/video DSP usage, Bluetooth and lights other than
screen backlight.

Screen, Idle, Wifi and Voice usage and CPU time are accounted for.

Also need to add detail screens for each item and suggested actions.
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 5b04e51..4879db2 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1574,6 +1574,7 @@
     <string name="usage_time_label">Usage time</string>
 
     <!-- Accessibility settings -->
+    <skip/>
 
     <!-- Settings title for accessibility settings -->
     <string name="accessibility_settings_title">Accessibility</string>
@@ -1599,6 +1600,26 @@
          selects to disable accessibility. This avoids accidental disabling. -->
     <string name="accessibility_service_disable_warning">Disable accessibility?</string>
 
+    <!-- App Fuel Gauge strings -->
+    <skip/>
+
+    <!-- Activity title for App Fuel Gauge summary -->
+    <string name="power_usage_summary_title">Power usage summary</string>
+    <!-- CPU awake time title -->
+    <string name="awake">Device awake time</string>
+    <!-- Wifi on time -->
+    <string name="wifi_on_time">WiFi on time</string>
+
+    <!-- Label for power consumed by the screen -->
+    <string name="power_screen">Screen on</string>
+    <!-- Label for power consumed by WiFi -->
+    <string name="power_wifi">WiFi</string>
+    <!-- Label for power consumed by Cell idle -->
+    <string name="power_cell">Cell</string>
+    <!-- Label for power consumed by Calling -->
+    <string name="power_phone">Voice</string>
+    <!-- Label for power consumed when Idle -->
+    <string name="power_idle">Standby</string>
 </resources>