Completed refactoring to separate nip files, and updating build.sh

nostr_core/nip006.c

@@ -4,12 +4,12 @@
 
 #include "nip006.h"
 #include "utils.h"
-#include "nostr_crypto.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
 #include <time.h>
+#include "../nostr_core/nostr_common.h"
 
 int nostr_generate_keypair(unsigned char* private_key, unsigned char* public_key) {
     if (!private_key || !public_key) {