add support for physicaly based volumetric particles rendering to eeve and cycles in addition to particle density shader

it would at support for physicaly based volumetric particles rendering to eeve and cycles in addition to particle density shader. I have supplied the web based source code example which runs in opera and google chrome if you have gpu. it would be nice to port it for blender 2.8x series.

drive.google.com/open

video preview

youtu.be/a0hJAZfIRvE

original developer : hi@david.li

thanks.

agapi simon