Fix places autocomplete types parameter and introduced correct type enum

[mikkelspring]

Based on my understanding, the autocomplete for places is slightly different than the places search. In particular, it has a parameter name "types" that takes a restricted set of values.

https://developers.google.com/places/web-service/autocomplete

This PR adjusts the autocomplete to reflect this

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[mikkelspring]

I signed the CLA

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[domesticmouse]

I suspect this is a documentation bug, please hold this until I confirm one way or the other.