Introduce FileSaverOptions to consolidate common parameters

shared/filesaveroptions.h

@@ -0,0 +1,14 @@
+#ifndef FILESAVEROPTIONS_H
+#define FILESAVEROPTIONS_H
+
+class FileSaverOptions
+{
+  public:
+	bool verbose = false;
+	bool keepGoing = false;
+	bool pathsOnly = false;
+	/* Whether those previously explicitly without content should be filled */
+	bool fillPathsOnlyWithContent = false;
+};
+
+#endif // FILESAVEROPTIONS_H