#19 Tests

* refactors CheckableMixin and RecordableMixin into CheckableObject and RecordableObject
* adds ShareableObject for wrapping share related fields and functionality
* adds share functionality to EcoAccount and EMA, just like Intervention

compensation/templates/compensation/detail/eco_account/includes/controls.html

@@ -12,6 +12,9 @@
         </button>
     </a>
     {% if has_access %}
+        <button class="btn btn-default btn-modal mr-2" title="{% trans 'Share' %}" data-form-url="{% url 'compensation:share-create' obj.id %}">
+            {% fa5_icon 'share-alt' %}
+        </button>
         {% if is_ets_member %}
             {% if obj.recorded %}
                 <button class="btn btn-default btn-modal mr-2" title="{% trans 'Unrecord' %}" data-form-url="{% url 'compensation:acc-record' obj.id %}">