Add task-list creation.

src/app/task-lists/add-task-list/add-task-list.component.html

@@ -0,0 +1,15 @@
+<form [formGroup]="addTaskListFormGroup" (submit)="onSubmit()" ngNativeValidate>
+  <p>
+    <mat-form-field>
+      <mat-label>Nom de la liste</mat-label>
+      <input matInput autofocus id="task-name-input" name="task-name-input" formControlName="name" />
+      <mat-error *ngIf="form.name.invalid">
+        Veuillez saisir le nom de la task-list.
+      </mat-error>
+    </mat-form-field>
+  </p>
+  <div>
+    <button mat-raised-button type="button" (click)="close()">Annuler</button>
+    <button mat-raised-button type="submit">Créer une liste</button>
+  </div>
+</form>