add support for 12 seed phrase

[Imdavyking]

Please can you add support for 12 seed phrase, i have tried it but to no avail, https://github.com/abmera/bip39toalgo

[Imdavyking]

in flutter for 12 seed phrase

import 'dart:typed_data';

import 'package:bip39/bip39.dart' as bip39;
import 'package:bip32/bip32.dart' as bip32;

class SeedPhraseRoot {
  Uint8List seed;
  bip32.BIP32 root;
  SeedPhraseRoot(Uint8List _seed, bip32.BIP32 _root) {
    seed = _seed;
    root = _root;
  }
}

SeedPhraseRoot seedFromMnemonic(seedPhrase) {
  Uint8List seed = bip39.mnemonicToSeed(seedPhrase);
  bip32.BIP32 root = bip32.BIP32.fromSeed(seed);

  return SeedPhraseRoot(seed, root);
}

Future calculateAlgorandKey(Map config) async {
  SeedPhraseRoot seedRoot_ = seedFromMnemonic(seedPhrase);
  KeyData masterKey =
      await ED25519_HD_KEY.derivePath("m/44'/283'/0'/0'/0'", seedRoot_.seed);
  final account =
      await algorandClient.loadAccountFromPrivateKey(HEX.encode(masterKey.key));
  if (config['getAlgorandKeys'] != null && config['getAlgorandKeys'] == true) {
    return account;
  }

  return {
    'address': account.publicAddress,
  };
}