Update logo for compatibility with Project Browser

Problem/Motivation

Problem/Motivation
The logo on your project will be displayed in the Project Browser (as well as on drupalcode.org as your project avatar, and on drupal.org on your project page).

Proposed resolution
the current logo needs to be moved into the code repository to be properly displayed.

Remaining tasks
INSTRUCTIONS: The logo should be added to the root folder of the repo, and be named logo.png. This must be present on your project’s default branch.

If you have previously added a logo as the first image in the Images field on your project page, please remove it. Project Browser will no longer be using the first image as the logo.

Logo should be 500x500px and file size less than 10Kbytes.

Steps to reproduce

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Proposed resolution

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Remaining tasks

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User interface changes

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API changes

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Data model changes

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