The ApplySNShaders script should have the MaterialIndices array defaulted to one element

[Indigocoder1]

Describe the feature
On the ApplySNMaterial script from the TK Utilities PR, the MaterialIndices array should be defaulted to having one element.

Purpose
It's easy to confuse the Size 0 with Element 0, and then getting unexpected behavior when the script doesn't work.
Defaulting it would also just be nice so you didn't have to add one element to get it to work.

[Indigocoder1]

Never mind, I just forgot to update the reference in my Unity project ._.