Version 1.1.0 Redash dashboards integration and improvements in Nexcloud connector and External Data module

New module to integrate the dashboards of Redash with Frappe
New functionality for setting up Frappe apps backups in Nexcloud
Nextcloud excluding file formats is case sensitive, avoid this
Functionality to clean data loaded in external data source
Functionality to change data model in empty external data source
Detect incidents in the file that contains the external data