Merge pull request #576 from Ryex/identify-zip-packs

fix https://github.com/PrismLauncher/PrismLauncher/issues/349

launcher/FileSystem.h

@@ -122,6 +122,14 @@ class copy : public QObject {
     int m_copied;
 };
 
+/**
+ * @brief moves a file by renaming it
+ * @param source source file path
+ * @param dest destination filepath
+ * 
+ */
+bool move(const QString&  source, const QString& dest);
+
 /**
  * Delete a folder recursively
  */