Add new script to make Windows bootable by executing bcdboot in WinPE launched once via BootNext after FWS installation.
The script:
1. Stages bootable WinPE from ISO (bootmgr + BCD + boot.wim) to ESP
2. Injects automation (winpeshl.ini + fwspe.cmd) into boot.wim boot image
- WinPE finds Windows drive and ESP partition
- Executes bcdboot and reboots
3. Creates UEFI entry with one-shot BootNext to WinPE
Note: Not validated on real hardware. Recommended path: bcdboot writes correct BCD with one automatic WinPE reboot before returning to FWS.
