Add Wayland logo

[Zynthasius39]

Thank you for your contribution! Before sending this Pull Request, please confirm the following:

• You have read the contributing guidelines
• The icon's size is under 1,024 Bytes
• The layout of the SVG looks like this including newlines

<svg xmlns="http://www.w3.org/2000/svg"
aria-label="..." role="img"
viewBox="0 0 512 512"><path
d="m0 0H512V512H0"
fill="#fff"/> ... </svg>

If you have done the above, please send the Pull Request.

[Eiim]

This looks great! I'll make sure @edent is good with it since it's a bit simplified, but I think it's quite reasonable.

[edent]

This is brilliant! Thanks @Zynthasius39