add C api header for each 256/384/384_256

include/mcl/bn_c256.h

@@ -0,0 +1,11 @@
+#pragma once
+/**
+	@file
+	@brief C API of 256-bit optimal ate pairing over BN curves
+	@author MITSUNARI Shigeo(@herumi)
+	@license modified new BSD license
+	http://opensource.org/licenses/BSD-3-Clause
+*/
+#define MCLBN_FP_UNIT_SIZE 4
+#include <mcl/bn.h>
+

include/mcl/bn_c384.h

@@ -0,0 +1,12 @@
+#pragma once
+/**
+	@file
+	@brief C API of 384-bit optimal ate pairing over BN curves
+	@author MITSUNARI Shigeo(@herumi)
+	@license modified new BSD license
+	http://opensource.org/licenses/BSD-3-Clause
+*/
+#define MCLBN_FP_UNIT_SIZE 6
+#define MCLBN_FR_UNIT_SIZE 6
+#include <mcl/bn.h>
+

include/mcl/bn_c384_256.h

@@ -0,0 +1,12 @@
+#pragma once
+/**
+	@file
+	@brief C API of 384/256-bit optimal ate pairing over BN curves
+	@author MITSUNARI Shigeo(@herumi)
+	@license modified new BSD license
+	http://opensource.org/licenses/BSD-3-Clause
+*/
+#define MCLBN_FP_UNIT_SIZE 6
+#define MCLBN_FR_UNIT_SIZE 4
+#include <mcl/bn.h>
+