Grass update!

With no lighting this is the different between Chris's grass and the new one.

Also this new version renders faster and now worrying about z-depth is a thing of the past!
This shader automatically figures it out for you!

I also made a quick new asset called dialroom_center_setdressing which is where the new plants are coming from. It might be good to set dress it better still, but this is a start. 

So yeah, now all lighters should tab in a new "dialroom_center_landscape" I will include a quick lighting pass of it all too.