Implement ns lookup allowlist (#1420)

The ns-lookup accepts domain names as well as suffixes, e.g.:

```
--allow-resolve=* # allow all domain names
--allow-resolve=example.com # only allow example.com name resolution
--allow-resolve=example.com --allow-resolve=*.example.com # allow example.com and its subdomains' name resolution
```

core/iwasm/interpreter/wasm.h

@@ -320,6 +320,8 @@ typedef struct WASIArguments {
     /* in CIDR noation */
     const char **addr_pool;
     uint32 addr_count;
+    const char **ns_lookup_pool;
+    uint32 ns_lookup_count;
     char **argv;
     uint32 argc;
     int stdio[3];