Move global actions to sysui and add plugin interface

 - Move default global actions ui to sysui
 - Add fallback legacy interface in case sysui breaks
 - Switch to fallback if sysui dies or isn't responding

Test: Long-press power
Change-Id: I943522611de5dbbee61e66c67cf3a56379091e97
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index b77000b..9ed7c93 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -56,7 +56,7 @@
 import com.android.internal.notification.SystemNotificationChannels;
 import com.android.internal.os.BinderInternal;
 import com.android.internal.os.SamplingProfilerIntegration;
-import com.android.internal.policy.EmergencyAffordanceManager;
+import com.android.internal.util.EmergencyAffordanceManager;
 import com.android.internal.util.ConcurrentUtils;
 import com.android.internal.widget.ILockSettings;
 import com.android.server.accessibility.AccessibilityManagerService;