chore: release 47.0.0

[release-please]

🤖 I have created a release *beep* *boop*

47.0.0 (2020-01-16)

⚠ BREAKING CHANGES

• run the generator (feat!: run the generator #1935)

Features

• run the generator (#1935) (e5d8c08)

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This PR was generated with Release Please.

[codecov]

Codecov Report

Merging #1936 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1936   +/-   ##
=======================================
  Coverage   40.68%   40.68%           
=======================================
  Files           5        5           
  Lines         998      998           
  Branches        7        7           
=======================================
  Hits          406      406           
  Misses        592      592

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[yoshi-automation]

Release is at https://github.com/googleapis/google-api-nodejs-client/releases/tag/v47.0.0

[AdriVanHoudt]

What actually changed here? run the generator doesn't tell me much and the referenced PR has +58,937 −16,107 which is a bit much to review manually on what changed/what is the breaking change part.
Do I have to look somewhere else to find the changelog?