⚡ Add Freshdesk contacts resource (#938)

* Freshdesk - add contact integration

* fix linter errors

* ⚡ Small improvements

Co-authored-by: Yonatan Rosemarin <yonatan.r@billrun.com>

packages/nodes-base/nodes/Freshdesk/ContactInterface.ts

@@ -0,0 +1,24 @@
+import {
+	IDataObject,
+} from 'n8n-workflow';
+
+export interface ICreateContactBody {
+	address?: string;
+	// avatar?: object;
+	company_id?: number;
+	custom_fields?: IDataObject;
+	description?: string;
+	email?: string;
+	job_title?: string;
+	language?: string;
+	mobile?: string;
+	name?: string;
+	other_companies?: string[];
+	other_emails?: string[];
+	phone?: string;
+	tags?: string[];
+	time_zone?: string;
+	twitter_id?: string;
+	unique_external_id?: string;
+	view_all_tickets?: boolean;
+}