Adding in scaleNodes option for config SCALETYPE

I ran into an issue upsizing InfernalRobotics parts due to the fact IR doesn't like node sizes greater than 1.

With these changes if the config SCALETYPE has this:
````perl
SCALETYPE
{
   name = T
   scaleFactors = 0.5, 1.0, 2.0
   scaleNames = sml,med,lrg
   scaleNodes = 0, 0, 1
}
````
Nodes will be set to corresponding sizes.

Otherwise if:
````perl
SCALETYPE
{
   name = T
   scaleFactors = 0.5, 1.0, 2.0
   scaleNames = sml,med,lrg
}
````
Then nodes will be resized by the original method.