project: added project skeleton

Skeleton includes emtpy implementations of application class structure.
Source groups were added to CMakeLists to define filters in Visual Studio.

src/lib/ApplicationSettings.h

@@ -0,0 +1,22 @@
+#ifndef APPLICATION_SETTINGS_H
+#define APPLICATION_SETTINGS_H
+
+#include <memory>
+
+class ApplicationSettings
+{
+public:
+	static std::shared_ptr<ApplicationSettings> getInstance();
+
+	~ApplicationSettings();
+
+private:
+	ApplicationSettings();
+	ApplicationSettings(const ApplicationSettings&);
+	void operator=(const ApplicationSettings&);
+
+	static std::shared_ptr<ApplicationSettings> s_instance;
+};
+
+
+#endif // APPLICATION_SETTINGS_H