src: refactored lib/utility

* removed unused utilityMath
* removed some unused functions from utility
* moved time related utility functions to TimeStamp
* moved path objects from utility to app/paths
* moved objects in lib to lib/app
* removed duplicate confirm methods in DialogView
* moved utilityFile to utility/file
* removed uint typedef and replaced with size_t everywhere
* removed boost header in utilityUuid

src/lib/app/LanguagePackageManager.h

@@ -0,0 +1,26 @@
+#ifndef LANGUAGE_PACKAGE_MANAGER_H
+#define LANGUAGE_PACKAGE_MANAGER_H
+
+#include <memory>
+#include <vector>
+
+class IndexerComposite;
+class LanguagePackage;
+
+class LanguagePackageManager
+{
+public:
+	static std::shared_ptr<LanguagePackageManager> getInstance();
+	static void destroyInstance();
+
+	void addPackage(std::shared_ptr<LanguagePackage> package);
+	std::shared_ptr<IndexerComposite> instantiateSupportedIndexers();
+
+private:
+	static std::shared_ptr<LanguagePackageManager> s_instance;
+	LanguagePackageManager() = default;
+
+	std::vector<std::shared_ptr<LanguagePackage>> m_packages;
+};
+
+#endif // LANGUAGE_PACKAGE_MANAGER_H