- Added Get-OPNSenseConfig cmdlet that retrieves the OPNSense configuration as an XML document
- Updated Restore-OPNSenseConfig to accept an XML document from the pipeline or as a parameter
- Changed Export-OPNSenseConfig and Import-OPNSenseConfig to use System.IO.FileInfo for the Path parameter
- Removed Backup-OPNSenseConfig cmdlet (use Get-OPNSenseConfig instead)
- Updated documentation and examples