Device source plugins: implemented an init method for initializations to be done when all collaborating objects are created and possibly connected

plugins/samplesource/fcdpro/fcdproinput.cpp

@@ -91,6 +91,11 @@ bool FCDProInput::openDevice()
     return true;
 }
 
+void FCDProInput::init()
+{
+    applySettings(m_settings, true);
+}
+
 bool FCDProInput::start()
 {
 	qDebug() << "FCDProInput::start";

plugins/samplesource/fcdpro/fcdproinput.h

@@ -101,6 +101,7 @@ public:
 	virtual ~FCDProInput();
 	virtual void destroy();
 
+    virtual void init();
 	virtual bool start();
 	virtual void stop();