[ADF-2289] Login with oauth2 provider (#2924)

* Fix oauth2 provider

* Add the schema validation

* Improve the login doc with provider "OAUTH"

* fix doc

lib/core/services/alfresco-api.service.ts

@@ -88,7 +88,8 @@ export class AlfrescoApiService {
             hostEcm: this.appConfig.get<string>('ecmHost'),
             hostBpm: this.appConfig.get<string>('bpmHost'),
             contextRoot: 'alfresco',
-            disableCsrf: this.storage.getItem('DISABLE_CSRF') === 'true'
+            disableCsrf: this.storage.getItem('DISABLE_CSRF') === 'true',
+            oauth2 : this.appConfig.get<any>('oauth2')
         });
     }
 }