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/data/parser/TaskParseWrapper.cpp

@@ -7,7 +7,7 @@
 
 TaskParseWrapper::TaskParseWrapper(
 	PersistentStorage* storage,
-	DialogView* dialogView
+	std::shared_ptr<DialogView> dialogView
 )
 	: m_storage(storage)
 	, m_dialogView(dialogView)

src/lib/data/parser/TaskParseWrapper.h

@@ -20,7 +20,7 @@ class TaskParseWrapper
 public:
 	TaskParseWrapper(
 		PersistentStorage* storage,
-		DialogView* dialogView
+		std::shared_ptr<DialogView> dialogView
 	);
 	virtual ~TaskParseWrapper();
 
@@ -33,7 +33,7 @@ private:
 	virtual void doReset(std::shared_ptr<Blackboard> blackboard);
 
 	PersistentStorage* m_storage;
-	DialogView* m_dialogView;
+	std::shared_ptr<DialogView> m_dialogView;
 
 	TimePoint m_start;
 	std::shared_ptr<TaskRunner> m_taskRunner;