Added Qgis icon (#1697)

* added qgis icon

* edited the svg to add title and role

* modified svg to be in correct format

* optimized svg and updated simple-icons.json

* updated source to point to design guide and SVG into single line

--

Closes #1694

_data/simple-icons.json

@@ -2400,6 +2400,11 @@
             "hex": "EE4C2C",
             "source": "https://github.com/pytorch/pytorch/tree/master/docs/source/_static/img"
         },
+        {
+            "title": "Qgis",
+            "hex": "589632",
+            "source": "https://www.qgis.org/en/site/getinvolved/styleguide.html"
+        },
         {
             "title": "Qiita",
             "hex": "55C500",

icons/qgis.svg

@@ -0,0 +1 @@
+<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Qgis icon</title><path d="M12.879 13.006v3.65l-3.004-3.048v-3.495h3.582l2.852 2.893h-3.43zm10.886 7.606V24h-3.654l-5.73-5.9v-3.55h3.354l6.03 6.062zm-10.828-1.448l3.372 3.371c-1.309.442-2.557.726-4.325.726C5.136 23.26 0 18.243 0 11.565 0 4.92 5.136 0 11.984 0 18.864 0 24 4.952 24 11.565c0 2.12-.523 4.076-1.457 5.759l-3.625-3.725a8.393 8.393 0 00.24-2.005c0-4.291-3.148-7.527-7.1-7.527-3.954 0-7.248 3.236-7.248 7.527s3.33 7.6 7.247 7.6c.548 0 .661.017.88-.03z"/></svg>