nostrdb: port everything over to be in as sync as possible

for now

nostrdb/print_util.h

@@ -0,0 +1,36 @@
+
+static void ndb_print_text_search_key(struct ndb_text_search_key *key)
+{
+	printf("K<'%.*s' %d %" PRIu64 " note_id:%" PRIu64 ">", key->str_len, key->str,
+						    key->word_index,
+						    key->timestamp,
+						    key->note_id);
+}
+
+static void print_hex(unsigned char* data, size_t size) {
+	size_t i;
+	for (i = 0; i < size; i++) {
+		printf("%02x", data[i]);
+	}
+}
+
+
+static void ndb_print_text_search_result(struct ndb_txn *txn,
+		struct ndb_text_search_result *r)
+{
+	size_t len;
+	struct ndb_note *note;
+
+	ndb_print_text_search_key(&r->key);
+
+	if (!(note = ndb_get_note_by_key(txn, r->key.note_id, &len))) {
+		printf(": note not found");
+		return;
+	}
+
+	printf(" ");
+	print_hex(ndb_note_id(note), 32);
+
+	printf("\n%s\n\n---\n", ndb_note_content(note));
+}
+