Add icon-text-btn for download renderer

src/app/metamodel/components/attribute/result/renderer/download-renderer.component.html

@@ -6,6 +6,7 @@
             <option value="text">Text</option>
             <option value="text-button">Text button</option>
             <option value="icon-button">Icon button</option>
+            <option value="icon-text-btn">Icon text button</option>
         </select>
     </div>
 </div>
@@ -15,8 +16,8 @@
         <input type="text" class="form-control" id="{{id}}_text" name="{{id}}_text" [formControl]="rendererConfig.controls.text">
     </div>
 </div>
-<div *ngIf="rendererConfig.controls.display.value === 'icon-button'" class="form-group row align-items-center">
-    <label for="{{id}}_icon" class="col-md-5 col-sm-12 col-form-label">Text:</label>
+<div *ngIf="rendererConfig.controls.display.value === 'icon-button' || rendererConfig.controls.display.value === 'icon-text-btn'" class="form-group row align-items-center">
+    <label for="{{id}}_icon" class="col-md-5 col-sm-12 col-form-label">Icon:</label>
     <div class="col-md-7 col-sm-12">
         <input type="text" class="form-control" id="{{id}}_icon" name="{{id}}_icon" [formControl]="rendererConfig.controls.icon">
     </div>