Re-draw the logo as SVG

Author: bash

assets/logo/readme.md

@@ -0,0 +1,6 @@
+# Logo
+
+The vectorized logo is a re-drawn version based on
+[@shmutalov](https://github.com/shmutalov)'s [original, rasterized version](https://github.com/rust-gamedev/wg/issues/4).
+
+It incorporates the official [rust-logo-gear-only.svg](https://github.com/rust-lang/rust-artwork/blob/master/logo/rust-logo-gear-only.svg).