Add login capability; Add register page to routing; Block access from users that are not logged in.

webservice/Frontend/Aktienbot/src/app/Views/login/login.component.html

@@ -2,7 +2,7 @@
   <div class="card card-container no-border">
     <img
       id="profile-img"
-      src="//ssl.gstatic.com/accounts/ui/avatar_2x.png"
+      src="https://i.kym-cdn.com/entries/icons/mobile/000/029/959/Screen_Shot_2019-06-05_at_1.26.32_PM.jpg"
       class="profile-img-card"
     />
     <form
@@ -66,7 +66,10 @@
       </div>
     </form>
     <div class="alert alert-success" *ngIf="isLoggedIn">
-      Logged in as {{ roles }}.
+      Logged in as {{ accountName }}.
     </div>
+    <button class="btn btn-secondary btn-block" routerLink="/register">
+      Sign up
+    </button>
   </div>
 </div>