initializes the base for the firmware wizard

PWA based on ReactJs. Showcases the basic functionalities required
for the Firmware Selector.
Proof of Concept for the wizard with selection for vendor, model
and variants.

Signed-off-by: Sudhanshu Gautam <me@sudhanshug.com>
Initial commit from Create React App

src/containers/not-found/not-found.js

@@ -0,0 +1,26 @@
+import React from "react";
+import { Typography, Paper, Container } from "@material-ui/core";
+import { makeStyles } from '@material-ui/core/styles';
+
+const page404Styles = makeStyles(theme => ({
+  root: {
+    padding: theme.spacing(3, 2),
+  },
+}));
+
+
+export default function NotFound() {
+  var classes = page404Styles();
+  return (
+    <Container style={{marginTop: '50px'}}>
+      <Paper className={classes.root} elevation={3}>
+        <Typography variant="h5" component="h3">
+          404 Page Not Found
+        </Typography>
+        <Typography component="p">
+          Please head to the home.
+        </Typography>
+      </Paper>
+    </Container>
+  );
+}