add ui controls to the implicit hole filling

src/main_window.h

@@ -21,6 +21,8 @@ signals:
 	void save(const QString &path);
 	void fillHolesDumbClicked();
 	void fillHolesImplicitClicked();
+	void fillHolesImplicitScaleChanged(float value);
+	void fillHolesImplicitDiscrChanged(float value);
 	void smoothClicked();
 	void patchViewToggled(bool checked);