Adds Yandex logo

Fix #449
Yandex uses multiple different brand colors; the red "Y" in their logo
was used as color source

_data/simple-icons.json

@@ -1580,6 +1580,11 @@
             "hex": "0072C6",
             "source": "https://developer.yammer.com/docs/branding-guide"
         },
+        {
+            "title": "Yandex",
+            "hex": "FF0000",
+            "source": "https://yandex.com/company/general_info/logotype_rules"
+        },
         {
             "title": "Yelp",
             "hex": "C41200",

icons/yandex.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" version="1.2" baseProfile="tiny" viewBox="0 0 16 16"><path d="M1.268 10.9V9L0 5.6h.638l.934 2.625L2.647 5.05h.585l-1.38 3.973V10.9H1.27zM5.027 10.9h-.49c-.022-.083-.044-.2-.05-.298h-.038c-.164.208-.372.35-.7.35-.532 0-.896-.4-.896-1.136 0-.8.408-1.304 1.453-1.304h.082V8.29c0-.49-.164-.698-.49-.698-.297 0-.55.156-.742.326l-.11-.51c.17-.142.51-.298.89-.298.66 0 1.022.282 1.022 1.187v1.757c0 .356.037.668.067.845zM4.39 8.95h-.067c-.72 0-.875.32-.875.8 0 .43.14.712.437.712.2 0 .4-.134.504-.297V8.95zm1.868 1.95h-.58V7.153h.58v.327h.037c.103-.14.385-.37.734-.37.488 0 .747.275.747.845V10.9h-.585V8.007c0-.282-.126-.38-.35-.38-.243 0-.45.186-.584.372v2.9zm2.09-1.728c0-1.387.52-2.062 1.268-2.062.178 0 .363.06.475.14V5.6h.58V10.9h-.43l-.046-.297h-.037c-.163.208-.37.348-.675.348-.733 0-1.133-.622-1.133-1.778zm1.743-1.41c-.117-.117-.244-.177-.437-.177-.467 0-.69.704-.69 1.468 0 .875.164 1.41.587 1.41.29 0 .444-.142.54-.29v-2.41zm2.403 3.19c-.77 0-1.246-.616-1.246-1.765 0-1.202.334-2.077 1.127-2.077.623 0 1.03.467 1.03 1.736v.318H11.85c0 .846.237 1.29.697 1.29.326 0 .564-.148.712-.252l.134.445c-.237.185-.527.304-.897.304zm-.638-2.262h.957c0-.638-.104-1.105-.438-1.105-.355 0-.48.438-.52 1.105zm4.063-1.528l-.696 1.75L16 10.9h-.6l-.58-1.543-.562 1.542h-.57l.777-1.936-.704-1.802h.6l.484 1.357.51-1.358h.564z"/></svg>