Update Vault branding

vault/logo.svg

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 250 250">
+  <g fill="none">
+    <path fill="#000" d="M225 25L124.655 225 25 25"/>
+    <path fill="#FFF" d="M101.897 65h11.724v11.724H101.9V65zm17.24 0h11.725v11.724h-11.724V65zm17.242 0h11.72v11.724h-11.72V65zm-34.486 17.586h11.724V94.31h-11.724V82.586zm17.24 0h11.725V94.31h-11.724V82.586zm17.242 0H148.1V94.31h-11.72V82.586zm-34.483 17.242h11.724v11.724h-11.724V99.828zm17.24 0h11.725v11.724h-11.725V99.828zm0 17.586h11.725v11.724h-11.725v-11.724zm17.587-17.586h11.725v11.724H136.72V99.828z"/>
+  </g>
+</svg>