Add a file properties dialog

Task-number: QTCREATORBUG-19588
Change-Id: I75599459beb7e23812ba48670ae968585faefda9
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

src/plugins/coreplugin/documentmanager.cpp

@@ -31,6 +31,7 @@
 #include "coreconstants.h"
 
 #include <coreplugin/diffservice.h>
+#include <coreplugin/dialogs/filepropertiesdialog.h>
 #include <coreplugin/dialogs/readonlyfilesdialog.h>
 #include <coreplugin/dialogs/saveitemsdialog.h>
 #include <coreplugin/editormanager/editormanager.h>
@@ -948,6 +949,12 @@ bool DocumentManager::saveModifiedDocument(IDocument *document, const QString &m
                                  alwaysSaveMessage, alwaysSave, failedToClose);
 }
 
+void DocumentManager::showFilePropertiesDialog(const FileName &filePath)
+{
+    FilePropertiesDialog properties(filePath);
+    properties.exec();
+}
+
 /*!
     Asks the user for a set of file names to be opened. The \a filters
     and \a selectedFilter arguments are interpreted like in