✨ Add Spontit Node (#1186)

* Added first trial for a spontit integration

* Added spontit packages

* Changed option types from collection to string

* ⚡ Improvements to Spontit Node

Improvements to #1163

Co-authored-by: Tobias Schulz-Hess <tobias.schulz-hess@xing.com>

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

@@ -0,0 +1,24 @@
+import {
+	ICredentialType,
+	NodePropertyTypes,
+} from 'n8n-workflow';
+
+export class SpontitApi implements ICredentialType {
+	name = 'spontitApi';
+	displayName = 'Spontit API';
+	documentationUrl = 'spontit';
+	properties = [
+		{
+			displayName: 'API Key',
+			name: 'apiKey',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+		},
+		{
+			displayName: 'Username',
+			name: 'username',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+		},
+	];
+}