Added first release of the authentication module

src/app/shared/log-in/log-in.component.html

@@ -0,0 +1,29 @@
+<ds-loading *ngIf="(loading | async)"></ds-loading>
+<form *ngIf="!(loading | async)" class="form-login px-4 py-3" (ngSubmit)="submit()" [formGroup]="form" novalidate>
+  <label for="inputEmail" class="sr-only">{{"login.form.email" | translate}}</label>
+  <input id="inputEmail"
+         autocomplete="off"
+         autofocus
+         class="form-control"
+         formControlName="email"
+         placeholder="{{'login.form.email' | translate}}"
+         required
+         type="email"
+         (input)="resetError($event)">
+  <label for="inputPassword" class="sr-only">{{"login.form.password" | translate}}</label>
+  <input id="inputPassword"
+         autocomplete="off"
+         class="form-control"
+         placeholder="{{'login.form.password' | translate}}"
+         formControlName="password"
+         required
+         type="password"
+         (input)="resetError($event)">
+  <div *ngIf="(error | async) && hasError" class="alert alert-danger" role="alert" @fadeOut>{{ error | async }}</div>
+  <button class="btn btn-lg btn-primary btn-block mt-3" type="submit" [disabled]="!form.valid">{{"login.form.submit" | translate}}</button>
+  <div class="dropdown-divider"></div>
+  <a class="dropdown-item" href="#">{{"login.form.new-user" | translate}}</a>
+  <a class="dropdown-item" href="#">{{"login.form.forgot-password" | translate}}</a>
+</form>
+
+