Add audit event templates for each type of event

templates/audit_log/events/workspace_role.html

@@ -0,0 +1,14 @@
+{% extends "audit_log/events/_base.html" %}
+
+{% block content %}
+  for User <code>{{ event.event_details.updated_user_id }}</code> ({{ event.event_details.updated_user_name }})
+  in Workspace <code>{{ event.workspace_id }}</code> ({{ event.workspace.name }})
+
+  {% if event.changed_state.status %}
+    from status "{{ event.changed_state.status[0] }}" to "{{ event.changed_state.status[1] }}"
+  {% endif %}
+
+  {% if event.changed_state.role %}
+    from role {{ event.changed_state.role[0] }} to {{ event.changed_state.role[1] }}
+  {% endif %}
+{% endblock %}