Added 404 page

src/app/views/404/404.component.html

@@ -0,0 +1,14 @@
+<section class="p-5 invert">
+	<div class="d-flex justify-content-center">
+		<div>
+			<img src="/assets/img/column.png" alt="" height="300px" width="auto">
+		</div>
+		<div class="d-flex flex-column align-items-center justify-content-center px-5">
+			<h2>404</h2>
+			<h3>Page Not Found</h3>
+		</div>
+		<div>
+			<img src="/assets/img/column.png" alt="" height="300px" width="auto">
+		</div>
+	</div>
+</section>

src/app/views/404/404.component.ts

@@ -0,0 +1,7 @@
+import {Component} from '@angular/core';
+
+@Component({
+	selector: 'xxx-404',
+	templateUrl: './404.component.html'
+})
+export class FourOFourComponent { }