- create is_transporter checkbox in supplier doctype
- new field transporter (supplier with is_transporter checked)
- created fields driver and driver_name
- removed GST India fields from core doctype
- removed readonly & allow_on_submit from fields (delivery trip applicable only for in-house delivery)
- read_only transporter_name field (kept for backwards compatibility)
- made necessary changes in delivery_trip implementation
- hidden section's fields from print (preserving v10 convention)
- added transporter field to 'Driver' doctype
- added queries for transporter and driver fields
- GST India fields in regional module
- Fix e-waybill report
