feat(OpenAI Node): Add a node to work with OpenAI (#4932)

* feat(OpenAI Node): Add a node to work with OpenAI

* Added codex file for OpenAi node

* Minor tweaks to Operation Image.

* Minor tweaks to Resource Text.

* Minor copy modification to Image:Create.

* Removed "a Text" in Text operations names.

* ⚡ Connect Response Format parameter and other improvements

* ✨ Add "filter" postReceiveAction

* ⚡ Rename operations and add spelling mistake again to example

* ⚡ Rename another operation

Co-authored-by: Jonathan Bennetts <jonathan.bennetts@gmail.com>
Co-authored-by: Giulio Andreini <andreini@netseven.it>

packages/nodes-base/nodes/OpenAi/OpenAi.node.json

@@ -0,0 +1,19 @@
+{
+	"node": "n8n-nodes-base.openAi",
+	"nodeVersion": "1.0",
+	"codexVersion": "1.0",
+	"categories": ["Utility"],
+	"resources": {
+		"credentialDocumentation": [
+			{
+				"url": "https://docs.n8n.io/credentials/openAiApi"
+			}
+		],
+		"primaryDocumentation": [
+			{
+				"url": "https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.openai/"
+			}
+		]
+	},
+	"alias": ["ChatGPT", "DallE"]
+}