✨ Add Plivo Node (#1563)

* add Plivo Node

* fixed package.json

* added Git user in CLI to validate CLA

* 🎨 Replace PNG with SVG icon

* ⚡ Ajust per codebase conventions

* 🔨 Fix operation ID

* ✏️ Specify geo-restriction for MMS

* ⚡ Improvements

* ⚡ Fix node name and operation order

Co-authored-by: Nixon <nixon@Nixons-MacBook-Pro.local>
Co-authored-by: Nixon <nixon@plivo.com>
Co-authored-by: ricardo <ricardoespinoza105@gmail.com>
Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>

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

@@ -0,0 +1,24 @@
+import {
+	ICredentialType,
+	NodePropertyTypes,
+} from 'n8n-workflow';
+
+export class PlivoApi implements ICredentialType {
+	name = 'plivoApi';
+	displayName = 'Plivo API';
+	documentationUrl = 'plivo';
+	properties = [
+		{
+			displayName: 'Auth ID',
+			name: 'authId',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+		},
+		{
+			displayName: 'Auth Token',
+			name: 'authToken',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+		},
+	];
+}