Direct replacement of code:
- memcpy of a single point is done as a shallow_copy() assignment.
- memcpy of a range of points is done with an explicit cast to void*
to tell compiler that we really want to memcpy even a non-trivial
type.
In some cases it seems that memcpy can be used more (points are copied
in a loop). Those left as-is since this is supposed to be a simple
cleanup.
Differential Revision: https://developer.blender.org/D14505
92f2b77e78