[Feature Request: TextField]Support "multiline" prop

[ktmellow]

Is your feature request related to a problem? Please describe.
Multiline text-field that starts off as a single line and grows extra rows as needed

Describe the solution you'd like
See spec under Material's "Multi-line fields" section:
https://material.io/design/components/text-fields.html#input-types

Describe alternatives you've considered
TextArea prop provides different look and behaviour

[tychenjiajun]

This project is a wrapper around mdc-web. We won't add it until mdc-web implement it.

There's an issue in mdc-web about the multi-line text field.

[ktmellow]

Oh, wow. I can't believe how late the mdc-web implementation is. That's a shame. Thanks for the info.