data: Fixes and features for loading Coati into Coati

This change facilitates loading Coati into Coati:
* removed error logs for TokenComponent setting
* fixed edge checks regarding template stuff
* separated CommonSettings to be inherited by Project- and ApplicationSettings for common settings
* pluralized SourcePaths setting in xml to allow for loading multiple directories and single files
* added CompilerFlags section to settings
* passing Compiler arguments to Parser via struct Parser::Arguments
* setting -isystem for all header search paths to avoid distinction between "" and <> headers
* parsing all headers from the SourcePaths, even the ones that are not included
* fixed parsing time measurement and display
* added utility.h file for general utility functionality

src/lib/settings/ProjectSettings.h

@@ -0,0 +1,28 @@
+#ifndef PROJECT_SETTINGS_H
+#define PROJECT_SETTINGS_H
+
+#include <memory>
+#include <vector>
+
+#include "settings/CommonSettings.h"
+
+class ProjectSettings
+	: public CommonSettings
+{
+public:
+	static std::shared_ptr<ProjectSettings> getInstance();
+	~ProjectSettings();
+
+	// source
+	std::vector<std::string> getSourcePaths() const;
+	bool setSourcePaths(const std::vector<std::string>& sourcePaths);
+
+private:
+	ProjectSettings();
+	ProjectSettings(const ProjectSettings&);
+	void operator=(const ProjectSettings&);
+
+	static std::shared_ptr<ProjectSettings> s_instance;
+};
+
+#endif // PROJECT_SETTINGS_H