✨ Add Paddle Integration (#726)

* 🚧 Resource descriptions

* 🚧 Node logic / Genericfunctions setup

* 🚧 Tests / changes

* 🚧 Changes

- Added loadOptions to Payments / Coupon properties for easier item selection
- Added exemptions for how data is returned due to inconsistent data return object from API
- Other small fixes in main node

* 🚧 Simplified HTTPS error response

* 🚧 Added RAW Data options

* 🔥 Removed order resource

- Cannot fetch order without a checkout ID, which can only be obtained via a custom implementation which involves a callback function when a user goes through their checkout process.

* ⚡ Improvement to Paddle-Node

* ⚡ Improvements

* ⚡ Added all currencies, discount grouped properties to coupon update

Co-authored-by: ricardo <ricardoespinoza105@gmail.com>

packages/nodes-base/credentials/PaddleApi.credentials.ts

@@ -0,0 +1,23 @@
+import {
+	ICredentialType,
+	NodePropertyTypes,
+} from 'n8n-workflow';
+
+export class PaddleApi implements ICredentialType {
+	name = 'paddleApi';
+	displayName = 'Paddle API';
+	properties = [
+		{
+			displayName: 'Vendor Auth Code',
+			name: 'vendorAuthCode',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+		},
+		{
+			displayName: 'Vendor ID',
+			name: 'vendorId',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+		},
+	];
+}