add delete event tasks route

tests/Events/tasks/Delete task.bru

@@ -0,0 +1,20 @@
+meta {
+  name: Delete task
+  type: http
+  seq: 1
+}
+
+delete {
+  url: {{url}}/api/events/tasks/{{id}}
+  body: none
+  auth: inherit
+}
+
+vars:pre-request {
+  id: 
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}