Object paging LOD level selection is unreliable

Paging neglects to copy LOD center information for its reconstructed LOD nodes which often causes LOD levels to be chosen incorrectly. This is particularly obvious when active grid object paging is used.

Visit Balmora while running this demo mod and observe the oddities. cubetest.zip

Relevant MR: !5071 (merged)

Edited by Alexei Kotov