Adds Sogou logo

Fix #460
Based on logo/favicon from website
Weirdly the circle in their logo isn't actually circular, so vector isn't either

_data/simple-icons.json

@@ -1195,6 +1195,11 @@
             "hex": "FFFC00",
             "source": "https://www.snapchat.com/brand-guidelines"
         },
+        {
+            "title": "Sogou",
+            "hex": "FB6022",
+            "source": "https://www.sogou.com/"
+        },
         {
             "title": "Songkick",
             "hex": "F80046",

icons/sogou.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" version="1.2" baseProfile="tiny" viewBox="0 0 16 16"><path d="M11.2 15.16l.66.84c1.04-.45 1.95-1.08 2.7-1.9l-.63-.88c-.74.86-1.65 1.52-2.72 1.94z"/><path d="M8 14.8c-3.85 0-6.97-3.08-6.97-6.9 0-3.8 3.12-6.88 6.97-6.88s6.97 3.1 6.97 6.9c0 1.7-.63 3.26-1.67 4.46l.63.84C15.2 11.82 16 9.96 16 7.92 16 3.53 12.42 0 8 0S0 3.54 0 7.9c0 4.38 3.58 7.92 8 7.92 1.14 0 2.22-.23 3.2-.66l-.64-.84c-.8.3-1.66.48-2.56.48z"/><path d="M12 8.43c-1.5-1.24-3.56-1.4-5.2-2.37-.5-.32-.1-.93.4-.95 1.8-.3 3.58.42 5.26 1l.1-1.77c-2.1-.76-4.38-1.25-6.6-.9-.8.2-1.6.45-2.17 1.04-.78.8-.64 2.24.26 2.88C5.54 8.53 7.5 8.7 9.13 9.6c.64.26.37 1.12-.26 1.18-1.95.37-3.87-.48-5.55-1.4-.02.68-.04 1.34-.04 2 2.13.94 4.5 1.38 6.8 1.02.78-.15 1.58-.4 2.15-.97.82-.8.74-2.34-.22-3z"/></svg>