Adding models and components

src/app/components/header/header.component.html

@@ -0,0 +1,8 @@
+<div id="header">
+	<p id="header-title">Doppelkopf-Stats</p>
+	<span id="user-info">
+		<p>Paddy</p>
+		<img src="assets/images/user.png" alt="User Icon" (click)="openProfile()">
+	</span>
+	<app-profile *ngIf="showProfilePopover"></app-profile>
+</div>