feat(v1p3beta1): added support for streaming automl action recognition. (#439)

PiperOrigin-RevId: 312101156

Source-Author: Google APIs <[email protected]>
Source-Date: Mon May 18 10:04:40 2020 -0700
Source-Repo: googleapis/googleapis
Source-Sha: d1a9f02fd4fb263bae0383b4a5af0bbef33753d6
Source-Link: googleapis/googleapis@d1a9f02

Author: yoshi-automation