Source tree reorganization

src/field_5x52.h

@@ -0,0 +1,19 @@
+#ifndef _SECP256K1_FIELD_5x52_
+#define _SECP256K1_FIELD_5x52_
+
+#include <stdint.h>
+
+extern "C" {
+
+typedef struct {
+    // X = sum(i=0..4, elem[i]*2^52) mod n
+    uint64_t n[5];
+#ifdef VERIFY
+    int magnitude;
+    int normalized;
+#endif
+} secp256k1_fe_t;
+
+}
+
+#endif