datatransfer: add bytes progress DBus API

Add ConfigurationManager::dataTransferBytesSent() DBus method access.

Change-Id: I74fc22f42faeb5c352059831150b6c8b7e813fd8
Reviewed-by: Olivier Soldano <olivier.soldano@savoirfairelinux.com>

bin/dbus/cx.ring.Ring.ConfigurationManager.xml

@@ -1419,6 +1419,14 @@
            </arg>
        </method>
 
+	   <method name="dataTransferBytesSent" tp:name-for-bindings="dataTransferBytesSent">
+           <tp:added version="4.2.0"/>
+           <arg type="t" name="BytesProgress" direction="out">
+           </arg>
+           <arg type="t" name="DataTransferId" direction="in">
+           </arg>
+       </method>
+
        <signal name="mediaParametersChanged" tp:name-for-bindings="mediaParametersChanged">
            <tp:added version="2.3.0"/>
            <tp:docstring>

bin/dbus/dbusconfigurationmanager.cpp

@@ -634,3 +634,9 @@ DBusConfigurationManager::dataTransferInfo(const DRing::DataTransferId& id)
     out._6 = info.path;
     return out;
 }
+
+uint64_t
+DBusConfigurationManager::dataTransferBytesSent(const uint64_t& id)
+{
+    return DRing::dataTransferBytesSent(id);;
+}

bin/dbus/dbusconfigurationmanager.h

@@ -156,6 +156,7 @@ class DBusConfigurationManager :
         DRing::DataTransferId sendFile(const std::string& account_id, const std::string& peer_uri,
                                        const std::string& file_path, const std::string& display_name);
         DBus::Struct<bool, uint32_t, uint64_t, uint64_t, std::string, std::string> dataTransferInfo(const DRing::DataTransferId& id);
+        uint64_t dataTransferBytesSent(const uint64_t& id);
 };
 
 #endif // __RING_DBUSCONFIGURATIONMANAGER_H__