Updated the camerabin2 based camera with QtMultimedia changes

Moved it to the separate plugin as the rest of gstreamer based services;
Updated with libqgsttools_p changes;
Implemented QMediaRecorder::status property;
Made gst_photography dependency optional,
it's not always available on desktop;
Added video recording case to auto integration test;
Moved backend implementation into qt namespace

Task-number: QTBUG-26046
Change-Id: Iacfc1a6e263a4c0201d5eb28d04c960b87a230c0
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>

src/plugins/gstreamer/camerabin/camerabinaudioencoder.cpp

@@ -41,10 +41,12 @@
 
 #include "camerabinaudioencoder.h"
 #include "camerabincontainer.h"
-#include "qgstcodecsinfo.h"
+#include <private/qgstcodecsinfo_p.h>
 
 #include <QtCore/qdebug.h>
 
+QT_BEGIN_NAMESPACE
+
 CameraBinAudioEncoder::CameraBinAudioEncoder(QObject *parent)
     :QAudioEncoderSettingsControl(parent),
      m_codecs(QGstCodecsInfo::AudioEncoder)
@@ -110,3 +112,5 @@ GstEncodingProfile *CameraBinAudioEncoder::createProfile()
                                         NULL, //restriction
                                         0); //presence
 }
+
+QT_END_NAMESPACE