Add Volume panel

Volume panel hosts each volume stream, including:
- Media volume
- Call Volume
- Ring volume
- Alarm volume

Change-Id: I1801d10d2304c57615e9499386c638c74ffcd7c3
Screenshot: https://screenshot.googleplex.com/m764j65ECto
Bug: 117804161
Test: Manual app
Test: robolectric

res/values/strings.xml

@@ -10233,6 +10233,9 @@
     <!-- Title for the Internet Connectivity dialog (settings panel) with Internet related settings [CHAR LIMIT=50] -->
     <string name="internet_connectivity_panel_title">Internet Connectivity</string>
 
+    <!-- Title for the Volume dialog (settings panel) with all volume streams[CHAR LIMIT=50] -->
+    <string name="volume_connectivity_panel_title">Volume</string>
+
     <!-- UI debug setting: force desktop mode [CHAR LIMIT=50] -->
     <string name="force_desktop_mode">Force desktop mode</string>
     <!-- UI debug setting: force desktop mode summary [CHAR LIMIT=NONE] -->

res/xml/sound_settings.xml

@@ -28,6 +28,7 @@
         android:icon="@drawable/ic_media_stream"
         android:title="@string/media_volume_option_title"
         android:order="-180"
+        settings:allowDynamicSummaryInSlice="true"
         settings:controller="com.android.settings.notification.MediaVolumePreferenceController"/>
 
     <!-- Media output switcher -->
@@ -44,6 +45,7 @@
         android:icon="@drawable/ic_local_phone_24_lib"
         android:title="@string/call_volume_option_title"
         android:order="-170"
+        settings:allowDynamicSummaryInSlice="true"
         settings:controller="com.android.settings.notification.CallVolumePreferenceController"/>
 
     <!-- Hands free profile output switcher -->
@@ -60,6 +62,7 @@
         android:icon="@drawable/ic_notifications"
         android:title="@string/ring_volume_option_title"
         android:order="-160"
+        settings:allowDynamicSummaryInSlice="true"
         settings:controller="com.android.settings.notification.RingVolumePreferenceController"/>
 
 
@@ -69,6 +72,7 @@
         android:icon="@*android:drawable/ic_audio_alarm"
         android:title="@string/alarm_volume_option_title"
         android:order="-150"
+        settings:allowDynamicSummaryInSlice="true"
         settings:controller="com.android.settings.notification.AlarmVolumePreferenceController"/>
 
     <!-- Notification volume -->