logic: maven project setup

* added option to create a Coati project from a Maven POM file
* show list of indexed file paths in maven project setup
* use FileManager to detect indexed files in project setup (except cdb)
* added Maven path to preferences window and added path detectors.
* fixed: QtDialogView::hideStatusDialog now also hides loader in status bar.
* refactored ProjectType

fortune cookie message = If you continually give, you will continually have.

src/lib/Application.h

@@ -51,6 +51,7 @@ public:
 
 	int handleDialog(const std::string& message);
 	int handleDialog(const std::string& message, const std::vector<std::string>& options);
+	std::shared_ptr<DialogView> getDialogView();
 
 	bool isInTrial() const;
 
@@ -70,7 +71,6 @@ private:
 
 	void updateRecentProjects(const FilePath& projectSettingsFilePath);
 
-	DialogView* getDialogView() const;
 	void logStorageStats() const;
 
 	void updateTitle();