Adds VSCode Docker Container

[kdcllc]

To streamline the development without the need to install all of the tools on the local machine.

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[kdcllc]

@googlebot I signed it!

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[shoyer]

Thanks @kdcllc!

Did you mean to include changes to the tutorial notebooks in your pull request?

[kdcllc]

@shoyer I didn't mean to include the changes to the notebooks. I can try to revert that.