Add ExternalStorageServiceImpl to android.process.media

The impl uses the API added in
I9b132ce7e5e5985ef3307c75ce7db50affc65a8e

At the moment, this impl only supports handling filesystem IO using
FUSE and runs a FUSE daemon in the media process, FuseDaemon.

The service will handle filesytem IO from an upper file system mounted
for apps on /sdcard. It will receive these requests on /dev/fuse and
respond using the data in the MediaProvider database that has already
indexed the appropriate lower filesystem e.g /data/media/0

Bug: 135341433
Test: m
Change-Id: I722e79cc9eff31944ba37942411b3d8b68d195f5
diff --git a/Android.bp b/Android.bp
index 783da9e..88446ae 100644
--- a/Android.bp
+++ b/Android.bp
@@ -8,6 +8,8 @@
         "androidx.core_core",
     ],
 
+    jni_libs: ["libfuse_jni"],
+
     resource_dirs: [
         "res",
     ],