[core] fix detection of fixed drives

* Thanks to MS' shortsightedness, neither of IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS
  or IOCTL_STORAGE_GET_DEVICE_NUMBER alone are enough to retrieve a disk number:
  IOCTL_STORAGE_GET_DEVICE_NUMBER doesn't work for LVM drives and
  IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS doesn't work for USB fixed drives, so we
  must use both. Isn't it great?
* Closes #292
v1.4.5 (build 427)

* Also, all things considered I'm gonna use a dash for the version separator