Add logging for SettingsPanels

The 3 main categories are:
- Panel Opened
- Panel Closed
- Panel Slice interaction

There are 3 close events:
- See more button
- Done button
- Clicking outside the panel

Slice interactions will log the Uri of the Slice and the ActionType,
such as Toggle, Slider, Content (intent).

Change-Id: Iecad948f39f50dd12ae1bcb23a5d523e0df8bb98
Fixes: 117804231
Test: robotests

src/com/android/settings/panel/PanelFeatureProvider.java

@@ -21,7 +21,8 @@ import android.content.Context;
 public interface PanelFeatureProvider {
 
     /**
-     * Returns {@link PanelContent} as specified by the {@code panelType} and {@code packageName}.
+     * Returns {@link PanelContent} as specified by the {@param panelType}, and
+     * {@param mediaPackageName}.
      */
-    PanelContent getPanel(Context context, String panelType, String packageName);
+    PanelContent getPanel(Context context, String panelType, String mediaPackageName);
 }