Outsourced file related operations

include/FileService.h

@@ -0,0 +1,13 @@
+#ifndef FILE_SERVICES_H
+#define FILE_SERVICES_H
+
+#include <string>
+
+class FileServices {
+    public:
+    static bool doesNonEmptyFileExist(std::string);
+    static void emptyFile(std::string);
+    static void createOrOverwriteFile(std::string, std::string);
+};
+
+#endif