Add support for injecting Intel VMD drivers during Windows deployment. The script now:
- Parses the intel_vmd configuration option from the state file
- Checks for Intel VMD drivers in /usr/local/share/fws/drivers/intel-vmd/
- Injects drivers via WinPE (dism) when requested and available
- Falls back to Windows inbox VMD driver with a warning if no driver found
- Forces WinPE path when VMD driver injection is needed
- Passes driver path to fws-windows-bcdfix for processing