N°3190 - Edit n:n LinkedSetIndirect in object details using a tagset-like widget

- Add generic set block ui component
- Add model link set (direct and indirect) attribute (display style)
- Add model link set direct allowed values
- Create link set viewer block UI (BlockLinksSetDisplayAsProperty)
- Add set block ui factory for linkset
- Add object factory and create new endpoint in object controller (with data binder)
- Add link set model, link set repository and link set data transformer services

templates/base/components/input/set/simple_option_renderer.html.twig

@@ -0,0 +1,15 @@
+{# @copyright   Copyright (C) 2010-2021 Combodo SARL #}
+{# @license     http://opensource.org/licenses/AGPL-3.0 #}
+
+<div class="option simple-option-renderer" role="option">
+
+    <div class="simple-option-renderer--container" data-template-add-class="class">
+
+        <i class="simple-option-renderer--container--icon" data-template-add-class="icon"></i>
+
+        <span class="simple-option-renderer--container--label" data-template-text="label">
+        </span>
+
+    </div>
+
+</div>