Rename and move existing sample test

test/sample-components/basic.tsx

@@ -0,0 +1,18 @@
+// import * as PropTypes from "prop-types";
+import * as React from "react";
+
+interface Props {
+  text: string;
+}
+
+class C extends React.Component<Props> {
+  render() {
+    return <p>{this.props.text}</p>;
+  }
+}
+
+// C.propTypes = {
+//   text: PropTypes.string.isRequired
+// };
+
+export default C;