Fixed all Project Image Sources - closes #284

[nickjfrench]

This project closes issue #284

Changes

All project image sources, except Visual Studio Code, we're updated with the new image from either their repo or website (if no repo image).

Visual Studio Code's logo on their website is encoded directly in the browser and therefore is not served from a link. Therefore, I saved the logo and hosting it within this repo, under public/project-list-logos/vs_code.png

Projects Changed

The following projects were all missing images and have since been fixed.

• [x] CircuitVerse
• [x] aprenda-go-com-testes
• [x] Gatsby
• [x] Numpy
• [x] pandas
• [x] Tensorflow
• [x] Signal-Android
• [x] Leiningen
• [x] Reseter.css
• [x] MoveIt
• [x] Public Lab
• [x] SimpIQ
• [x] Conda
• [x] matplotlib
• [x] Bitcoin
• [x] Servo
• [x] React Native
• [x] Pytorch
• [x] Visual Studio Code
• [x] styled-system
• [x] Scrapy