implemented ui for sources root

scm-ui/src/repos/sources/components/FileIcon.js

@@ -0,0 +1,20 @@
+// @flow
+import React from "react";
+import type { File } from "@scm-manager/ui-types";
+
+type Props = {
+  file: File
+};
+
+class FileIcon extends React.Component<Props> {
+  render() {
+    const { file } = this.props;
+    let icon = "file";
+    if (file.directory) {
+      icon = "folder";
+    }
+    return <i className={`fa fa-${icon}`} />;
+  }
+}
+
+export default FileIcon;