Added Organisation Relation entity with update hook to install it, bumped version

modules/opencase_entities/oc_organisation_relation.page.inc

@@ -0,0 +1,30 @@
+<?php
+
+/**
+ * @file
+ * Contains oc_organisation_relation.page.inc.
+ *
+ * Page callback for Organisation Relation entities.
+ */
+
+use Drupal\Core\Render\Element;
+
+/**
+ * Prepares variables for Organisation Relation templates.
+ *
+ * Default template: oc_organisation_relation.html.twig.
+ *
+ * @param array $variables
+ *   An associative array containing:
+ *   - elements: An associative array containing the user information and any
+ *   - attributes: HTML attributes for the containing element.
+ */
+function template_preprocess_oc_organisation_relation(array &$variables) {
+  // Fetch OCOrganisationRelation Entity Object.
+  $oc_organisation_relation = $variables['elements']['#oc_organisation_relation'];
+
+  // Helpful $content variable for templates.
+  foreach (Element::children($variables['elements']) as $key) {
+    $variables['content'][$key] = $variables['elements'][$key];
+  }
+}