added Portuguese - Brazil

[Gabrielforest]

I have used the same structure from es

[jakewilliami]

Hey @Gabrielforest, this looks great, thanks so much for contributing! I changed the structure a bit to be more consistent with the other supported languages (namely to be more consistent with the interface for English).

I'd like to raise a couple of questions:

1. Do you know if Portugal Portuguese is the same as Brazilian Portuguese in terms of counting? I know that pronunciation is quite different, but I'm not so familiar so am unsure about counting. If they are the same then we can rename :pt_BR -> :pt.
2. Would you mind adding some more tests for Brazilian Portuguese? I think we should test floats, if you have implemented them, and just add some more test cases.

Thank you again for your help. Great work!

[Gabrielforest]

Hi! @jakewilliami in terms of counting they are the same. The spelling is a bit different but I am capable to make this implementation as well with some research on the internet and then some native speaker could help us with corrections...
What do you think?
And I will add more tests! No problem.

Thank you!

[jakewilliami]

@Gabrielforest, once again, great work! I wonder if it's possible to merge pt.jl and pt_BR.jl into one function, if the only difference is spelling? It would make sense that way—would you agree? If you need help implementing this, please let me know.

[Gabrielforest]

@jakewilliami I have made this implementation. Indeed much better now!

[jakewilliami]

Great work Gabriel! Sorry it has taken me a while to get back to you. It's looking good. One more thing: the tests seem to be failing now. Can you take a look? I can debug if you are too busy.

[Gabrielforest]

Thank you! I just fixed it, haven't seen your last message sorry about that.

[jakewilliami]

Great work Gabriel! Looks great :) I'll merge now.