new icon: webgpu (original, original-wordmark, plain, plain-wordmark, line, line-wordmark)

[canaleal]

Double check these details before you open a PR

• [x] PR does not match another non-stale PR currently opened
• [x] PR name matches the format new icon: Icon name (versions separated by comma). More details here
• [x] PR's base is the develop branch.
• [x] Your icons are inside a folder as seen here
• [x] SVG matches the standards laid out here
• [x] A new object is added in the devicon.json file as seen here

This PR closes #1936

Link to prove your SVG is correct and up-to-date.

• Webgpu Github
• W3 Webgpu Branding

For plain and line SVGs I went with #005a9c as it is the most prominent color in the original SVG.

Also, webgpu has 2 versions of the wordmark SVG; 1 has the text (Webgpu) underneath the icon and the other has the text on the right side of the icon. I went with the 1st option (Text below the icon) as it's considered the default SVG.

[nickyvanurk]

Can this PR be merged? It's been 6 months.