Centering tuning

[boner-cmd]

Centering should base its offset, rather than on the "perfect" center, instead based on the center of an ideal object of the given ratio (i.e. a square matrix of 8 items should have the same centerpoint as a square matrix of 9 items. Possible solution, center each object as though centering an object of x * z?

I.e. if x row limit is 3 and shape is 1:1, if zcount reaches 3 before running out of items, then shift the entire offset by that of a the square of 3x3

For a clearer example, if 2:1 and x row limit is 4, center resulting matrix as though centering 8 items (4x2), even if the actual total number of items is 5, 6, or 7.

This may perform worse for non-identical objects (but unsure), where the attempt at idealized code is superior, but it would certainly improve consistency for objects like the unit cubes used for testing.