Sort points based on their intrinsic properties.

Input parameters:

1. Pt → Pointlist to sort.
2. Sm → Metric which determines the sort order.
   • 0 → None
   • 1 → Minimum X
   • 2 → Minimum Y
   • 3 → Minimum Z
   • 4 → Maximum X
   • 5 → Maximum Y
   • 6 → Maximum Z
   • 7 → Combined X+Y+Z
   • 8 → Nearest
   • 9 → Furthest

Output parameters:

1. Pt → Sorted point list.
2. Im → Index map containing the changes applied to the list.