output stream should also respect non-default charset

Author: alepar

src/main/java/com/dampcake/bencode/Bencode.java

@@ -200,7 +200,7 @@ public byte[] encode(final Map<?, ?> m) {
 
     private byte[] encode(final Object o, final Type type) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
-        BencodeOutputStream bencode = new BencodeOutputStream(out);
+        BencodeOutputStream bencode = new BencodeOutputStream(out, charset);
 
         try {
             if (type == Type.STRING)