✨ Box Node and Trigger (#765)

* ✨ Box Node and Trigger

* ⚡ Improvements

* ⚡ small fix

* 🐛 Add missing interface

* ⚡  add search operation

packages/nodes-base/credentials/BoxOAuth2Api.credentials.ts

@@ -0,0 +1,46 @@
+import {
+	ICredentialType,
+	NodePropertyTypes,
+} from 'n8n-workflow';
+
+export class BoxOAuth2Api implements ICredentialType {
+	name = 'boxOAuth2Api';
+	extends = [
+		'oAuth2Api',
+	];
+	displayName = 'Box OAuth2 API';
+	properties = [
+		{
+			displayName: 'Authorization URL',
+			name: 'authUrl',
+			type: 'hidden' as NodePropertyTypes,
+			default: 'https://account.box.com/api/oauth2/authorize',
+			required: true,
+		},
+		{
+			displayName: 'Access Token URL',
+			name: 'accessTokenUrl',
+			type: 'hidden' as NodePropertyTypes,
+			default: 'https://api.box.com/oauth2/token',
+			required: true,
+		},
+		{
+			displayName: 'Scope',
+			name: 'scope',
+			type: 'hidden' as NodePropertyTypes,
+			default: '',
+		},
+		{
+			displayName: 'Auth URI Query Parameters',
+			name: 'authQueryParameters',
+			type: 'hidden' as NodePropertyTypes,
+			default: '',
+		},
+		{
+			displayName: 'Authentication',
+			name: 'authentication',
+			type: 'hidden' as NodePropertyTypes,
+			default: 'body',
+		},
+	];
+}