add icons for Character groups

www/analytics/plugins/ExampleAPI/plugin.json

@@ -0,0 +1,15 @@
+{
+    "name": "ExampleAPI",
+    "description": "Example Plugin: How to create an API for your plugin, to export your data in multiple formats without any special coding?",
+    "version": "1.0",
+    "keywords": ["example", "api"],
+    "homepage": "http://piwik.org",
+    "license": "GPL v3+",
+    "authors": [
+        {
+            "name": "Piwik",
+            "email": "hello@piwik.org",
+            "homepage": "http://piwik.org"
+        }
+    ]
+}