API: Use noOptions for parameters

Move  config.service to _services/
Rationalise  bootstrap and conf (WIP)
Fix auth:
- Add HTTP interceptor
- Bootstrap after login/logout
Some cleanups

src/app/app.component.html

@@ -2,7 +2,7 @@
     <mat-toolbar fxFlex="2em" id='top-toolbar'>
         <span
             style='font-family:GisafSymbols'
-            matTooltip="Gisaf v. {{ version }}"
+            matTooltip="Gisaf v. {{ (configService.conf | async).bsData?.version }}"
             matTooltipPosition="below"
             class='gisafIcon'
             >
@@ -25,12 +25,12 @@
             </a>
         </nav>
         <span class="fill-space"></span>
-        <span *ngIf="authenticationService.user$ | async; else login" class="auth-indicator">
+        <span *ngIf="(configService.conf | async).bsData?.user; else login" class="auth-indicator">
             <nav>
                 <a mat-icon-button
                     (click)='this.authenticationService.logout()'
                     aria-label="Log out"
-                    matTooltip="User: {{ (authenticationService.user$ | async ).userName }}. Click to log out">
+                    matTooltip="User: {{ (configService.conf | async ).bsData?.user.username }}. Click to log out">
                     <mat-icon>verified_user</mat-icon>
                 </a>
             </nav>