Minimum viable TimeDetectorService

This is a do-nothing DeviceContextualizerService that can be
populated in following commits. A temporary method has been
added so the service has one method.

Unit tests can be run with:

atest FrameworksServicesTests:TimeDetectorServiceTest

Test: build / boot
Test: See above
Change-Id: I9e4eac70b944441f34491315cd1ce7fa2b9ae150
diff --git a/Android.bp b/Android.bp
index 9eb73a9..94ca120 100644
--- a/Android.bp
+++ b/Android.bp
@@ -100,6 +100,7 @@
         "core/java/android/app/backup/ISelectBackupTransportCallback.aidl",
         "core/java/android/app/slice/ISliceManager.aidl",
         "core/java/android/app/slice/ISliceListener.aidl",
+        "core/java/android/app/timedetector/ITimeDetectorService.aidl",
         "core/java/android/app/timezone/ICallback.aidl",
         "core/java/android/app/timezone/IRulesManager.aidl",
         "core/java/android/app/usage/ICacheQuotaService.aidl",