Add Part Of Speech missing data to Token

[dvaldivia]

Hi,

This PR add the missing data returned by the API to the Token, before only the Tag was being returned, I added all the data to the existing PartOfSpeech object and replaced it's hydratation on the Token as well

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[dvaldivia]

I signed it!

[googlebot]

CLAs look good, thanks!

[lukesneeringer]

This looks good to me. (Thanks for all your work, @dvaldivia!)

[dvaldivia]

@lukesneeringer you are welcome :) What's next? Do I need to do anything else?

[dvaldivia]

@dhermes did as you requested, let me know if I should change anything else.