[Houdini] Particle To Debris

This handy operator automatically creates debris pieces from a simple box shatter and instances those particles onto incoming particles. It detects whether pscale/id is present and does all the stuff you would normally do for each debris sim. :)

It also normalizes the volume for the debris particles (with some fancy math) so the distribution of scale can be handled cleanly through the pscale on the particles.

Just something to take care of this repetetive task I found myself doing over and over again!