Add Webhook response node (#2254)

* ✨ Add Webhook-Response-Node

* ⚡ Replace callback function with promise

* ✨ Add support for Bull and binary-data

* ✨ Add string response option

* ⚡ Remove some comments

* ✨ Make more generically possible & fix issue multi call in
queue mode

* ⚡ Fix startup and eslint issues

* ⚡ Improvements to webhook response node and functionality

* ⚡ Replace data with more generic type

* ⚡ Make statusMessage optional

* ⚡ Change parameter order

* ⚡ Move Response Code underneath options

* ⚡ Hide Response Code on Webhook node if mode responseNode got selected

* ⚡ Minor improvements

* ⚡ Add missing file and fix lint issue

* ⚡ Fix some node linting issues

* ⚡ Apply feedback

* ⚡ Minor improvements

packages/nodes-base/nodes/Wait.node.ts

@@ -304,6 +304,11 @@ export class Wait implements INodeType {
 						value: 'lastNode',
 						description: 'Returns data of the last executed node',
 					},
+					{
+						name: 'Response Node finishes',
+						value: 'responseNode',
+						description: 'Returns data the response node did set',
+					},
 				],
 				default: 'onReceived',
 				description: 'When and how to respond to the webhook',