Update bip-0039.mediawiki

add one more library to generate mnemonics (with multilang support)

Author: skywinder

bip-0039.mediawiki

@@ -165,6 +165,7 @@ Rust:
 Swift:
 * https://github.com/CikeQiu/CKMnemonic
 * https://github.com/yuzushioh/WalletKit
+* https://github.com/BANKEX/web3swift (`BIP39` public class)
 
 C++:
 * https://github.com/libbitcoin/libbitcoin/blob/master/include/bitcoin/bitcoin/wallet/mnemonic.hpp