Update Nardo 3.1!

Hello there nardos, ...again

I updated the sfw-bellyscales and NSFW-bellyscales to the new update of the nardo model AND fixed weightpainting issues when sitting. In you library you should find now the old version and the new 3.1 Version (accidently called it 3.0 before).

What has changed?
- Fixed weightpainting and rig to the new Nardo version, so there is no clipping e.g. if you twist your spine.
- Added an additional Version of the NSFW-bellyscales with only 23 parameters, but you have to change the blendshapes manually in unity for that.
- Also you can find the old version in the "old prefab" folder

Why not sooner?
- I finished first another project. I hope you understand this.

~Alvos