Add XSplit icon (#868)

* Add XSplit logo

Added the logo of XSplit, a video streaming service, taken from their
press kit.

* Add XSplit data

Add the XSplit data, linking to the press page. The color is taken from
the Branding Guidelines: https://cdn4.xsplit.com/cms/presskit/Updated%20Branding%20Guidelines.pdf

_data/simple-icons.json

@@ -2020,6 +2020,11 @@
             "hex": "006567",
             "source": "https://dev.xing.com/logo_rules"
         },
+        {
+            "title": "XSplit",
+            "hex": "0095DE",
+            "source": "https://www.xsplit.com/presskit"
+        },
         {
             "title": "Y Combinator",
             "hex": "F0652F",

icons/xsplit.svg

@@ -0,0 +1 @@
+<svg aria-labelledby="simpleicons-xsplit-icon" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title id="simpleicons-xsplit-icon">XSplit icon</title><path d="M24 19.5c-.7-.1-2.5-.3-2.7-.3-.1 0-2.8 2.3-4 3.399l-.1.101c.1-1.3.3-2.601.399-3.9C11.7 18.1 5.9 17.4 0 16.7V1.5v-.2H.3C.9 1.4 22.9 3.9 24 4v15.5zm-2.6-2.6V6.2C15.1 5.5 8.7 4.7 2.4 4v10.6c6.3.8 12.7 1.5 19 2.3z"/></svg>