Lucas Merencia

I've added a Portuguese wordlist using the words specified [here](https://github.com/bitcoin/bips/blob/master/bip-0039/portuguese.txt). refs: https://github.com/bitpay/bitcore/issues/3192

Hi there, As explained at Bitcore Mnemonics [readme](https://github.com/bitpay/bitcore/blob/master/packages/bitcore-mnemonic/README.md) the package implements [Mnemonic code for generating deterministic keys](https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki). At the wordlist section we can find [this wordlists](https://github.com/bitcoin/bips/blob/master/bip-0039/bip-0039-wordlists.md) But I've checked and...