Godot 3.2 Docs Sprint: Let's complete the class reference

We use this shared document to work together on the Class Reference. Below, you'll see who is working on what at the moment, and a table with incomplete classes.

To contribute:

• Read the contribution guide.
• Review the list of incomplete classes at the end of this document and pick one you want to work on.
• Add the class you're working on, your name and the date to the Locked classes list below - remember to unlock them if you change your mind and stop working on them.

More info/help:

• See the last docs sprint blog post for more details and a video overview of the workflow.
• Join other documentation contributors on the #documentation channel on Godot's Discord: https://discord.gg/zH7NUgz

Useful links:

1. Recent class reference changes
2. Online class reference (auto-generated, don't edit the pages directly)

Locked classes

Write what you're working on and other contributors shouldn't edit (cleared on 2020-01-24):

Important: how to keep your local branch up-to-date

Pull request submitted, include #:

Incomplete classes on: 2020-01-28 (master)
Do not edit the table as changes will be lost on update.
Generated automatically with doc/tools/doc_status.py -bio doc/classes/ modules/*/doc_classes/

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