Add Craft CMS (#2666)

Closes #2665

_data/simple-icons.json

@@ -1080,6 +1080,11 @@
             "hex": "FF6C2C",
             "source": "https://cpanel.net/company/cpanel-brand-guide/"
         },
+        {
+            "title": "Craft CMS",
+            "hex": "E5422B",
+            "source": "https://craftcms.com/brand-resources"
+        },
         {
             "title": "Creative Commons",
             "hex": "EF9421",

icons/craftcms.svg

@@ -0,0 +1 @@
+<svg role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><title>Craft CMS icon</title><path d="M21.5 0h-19C1.1 0 0 1.1 0 2.5v18.9C0 22.9 1.1 24 2.5 24h19c1.4 0 2.5-1.1 2.5-2.5v-19C24 1.1 22.9 0 21.5 0zM12 14.6c.8 0 1.6-.3 2.4-1l1.1 1.3c-1.2 1-2.5 1.5-3.9 1.5-2.7 0-4.3-1.8-4-4.3.4-2.5 2.7-4.3 5.4-4.3 1.3 0 2.5.5 3.3 1.4l-1.6 1.3c-.5-.6-1.2-1-2-1-1.6 0-2.8 1-3.1 2.5-.2 1.6.7 2.6 2.4 2.6z"/></svg>