Added actions events for integrations and webhooks

refs https://github.com/TryGhost/Toolbox/issues/356

- this allows Ghost to collect CRUD events for integrations and
  webhooks, to eventually be shown in the audit log

ghost/core/core/server/models/integration.js

@@ -6,6 +6,9 @@ const {NoPermissionError} = require('@tryghost/errors');
 const Integration = ghostBookshelf.Model.extend({
     tableName: 'integrations',
 
+    actionsCollectCRUD: true,
+    actionsResourceType: 'integration',
+
     relationships: ['api_keys', 'webhooks'],
 
     relationshipBelongsTo: {

ghost/core/core/server/models/webhook.js

@@ -7,6 +7,9 @@ let Webhooks;
 Webhook = ghostBookshelf.Model.extend({
     tableName: 'webhooks',
 
+    actionsCollectCRUD: true,
+    actionsResourceType: 'webhook',
+
     defaults() {
         return {
             api_version: `v${ghostVersion.safe}`,