Restore vibrator@1.3 example service.

To ensure we still have a HIDL vibrator service around for testing.
This is from running command:
    git checkout 714220ef75707d826371c6c020c45663d6965f0c^ -- \
        vibrator/1.3/example

Bug: 141828236
Test: N/A
Change-Id: Iffd5c8d4b95466f1b7b277c9f69d9a6001f12db8
diff --git a/vibrator/1.3/example/android.hardware.vibrator@1.3-service.example.xml b/vibrator/1.3/example/android.hardware.vibrator@1.3-service.example.xml
new file mode 100644
index 0000000..172aa21
--- /dev/null
+++ b/vibrator/1.3/example/android.hardware.vibrator@1.3-service.example.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.vibrator</name>
+        <transport>hwbinder</transport>
+        <version>1.3</version>
+        <interface>
+            <name>IVibrator</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>