Normalization for the Dice

[miasik]

The idea is to make the differences between random values less different :-)

In the GUI it has to be a check box to enable normalization and an input box to set the normalization factor (it can be 2 by default)
The math:
After all elements are randomized, SM calculates https://en.wikipedia.org/wiki/Truncated_mean (dropping one min and one max values would be enough as for me) per block separately. Then each elements recalculates:
if randomized_weight >Truncated_mean then new_weight=Truncated_mean+(randomized_weight-Truncated_mean)/normalization_factor
if randomized_weight <Truncated_mean then new_weight=Truncated_mean-(Truncated_mean-randomized_weight)/normalization_factor
As the result we'll get a new distribution like this(for BASE):

[miasik]

I don't think that we actually need this feature :-)