feat: adapt to stellar-2.0

src/quic_util.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#define CALLOC(nmemb, size) calloc(nmemb, size)
+#define REALLOC(ptr, newsize)  realloc(ptr, newsize)
+#define	FREE(p)	{free((void *)p); p = NULL;}