Added Ghostfolio widget

src/widgets/ghostfolio/widget.js

@@ -0,0 +1,23 @@
+import credentialedProxyHandler from "utils/proxy/handlers/credentialed";
+
+const widget = {
+  api: "{url}/api/v2/portfolio/performance?range={endpoint}",
+  proxyHandler: credentialedProxyHandler,
+
+  mappings: {
+    today: {
+      endpoint: "1d"
+    },
+    ytd: {
+      endpoint: "ytd"
+    },
+    year: {
+      endpoint: "1y"
+    },
+    max: {
+      endpoint: "max"
+    },
+  },
+};
+
+export default widget;