added ability to connect to the current DeviceSupport

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/DeviceCommunicationService.java

@@ -31,6 +31,7 @@
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.net.Uri;
+import android.os.Binder;
 import android.os.Handler;
 import android.os.IBinder;
 import android.support.annotation.Nullable;
@@ -751,9 +752,16 @@ public void onDestroy() {
         }
     }
 
+    public class CommunicationServiceBinder extends Binder{
+        public DeviceSupport getDeviceSupport(){
+            if(mDeviceSupport == null) return null;
+            return ((ServiceDeviceSupport)DeviceCommunicationService.this.mDeviceSupport).getDelegate();
+        }
+    }
+
     @Override
     public IBinder onBind(Intent intent) {
-        return null;
+        return new CommunicationServiceBinder();
     }
 
     @Override

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/ServiceDeviceSupport.java

@@ -62,6 +62,10 @@ public ServiceDeviceSupport(DeviceSupport delegate, EnumSet<Flags> flags) {
         this.flags = flags;
     }
 
+    public DeviceSupport getDelegate() {
+        return delegate;
+    }
+
     @Override
     public void setContext(GBDevice gbDevice, BluetoothAdapter btAdapter, Context context) {
         delegate.setContext(gbDevice, btAdapter, context);