add hyperbola-quintessence.[ch]}, rank move gen, + file/rook/queen

src/hyperbola-quintessence.h

@@ -0,0 +1,19 @@
+/* hyperbola-quintessence.h - hyperbola-quintessence definitions.
+ *
+ * Copyright (C) 2024 Bruno Raoult ("br")
+ * Licensed under the GNU General Public License v3.0 or later.
+ * Some rights reserved. See COPYING.
+ *
+ * You should have received a copy of the GNU General Public License along with this
+ * program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
+ *
+ */
+
+#ifndef _HYPERBOLA_QUINTESSENCE_H
+#define _HYPERBOLA_QUINTESSENCE_H
+
+void hyperbola_init(void);
+
+#endif  /* _HYPERBOLA_QUINTESSENCE_H */