[ros-diffs] [sir_richard] 46574: [HALACPI]: Add project, right now it just builds the normal HAL. The idea is to split the generic HAL into legacy (x86 only) and ACPI (x86+ACPI, or x64). Bus handling, reboot/shutdown, PnP, power management (sleep/resume/hibernate), timer, environment variable, debugging, and initialization code is expected to differ between legacy and ACPI, if not more.