VSN-1208/Implement methods to start export and download for VehicleType, FuelType, and VehicleBrandModel
Implemented methods to initiate and download CSV exports for VehicleType, FuelType, and VehicleBrandModel. These methods handle export initiation by generating an export path and downloading the exported files through the corresponding services.
- Added export initiation and download functionality for each entity.
- Implemented export-related endpoints for VehicleType, FuelType, and VehicleBrandModel.