Add NPR Rendering to GraphicsTools/StandardShader

[HoloMoto]

Overview

NPR functionality has been added to the light mode of GraphicsTools/Standard shaders.

Please see the following video for the actual operation.

https://youtu.be/rB6KaXwDAB4

The use of MeshOutline enables comic-like rendering.

　I would like to add new features to ToonShader in the future, but even at this point, we think it is possible to create some very interesting expressions.

　Personally, I think that the ability to use the existing StandardShader features in conjunction with the MeshOutline allows for a much greater variety of expressions!

Changes

• Fixes: NPR Rendering for StandardShader #108

Verification

https://youtu.be/rB6KaXwDAB4

Additional

@Cameron-Micka
　Sorry I'm a little late as I was learning the new LightMode process!

　TokyoHoloLensMeetup will be held on 10/12 in Japan!
I will be presenting MRGT in a 5 minute slot. I'm off to talk about what MRGT has to offer, including this NPR feature!

[Cameron-Micka]

This is amazing! What a wonderful idea and great execution. I added a few comments mostly about how to charge how the feature is enabled in the shader GUI. Once that is addressed this looks good to merge.

Also had fun doing some testing:

Also, if the Tokyo HoloLens Meetup was recored it would be fun to watch your segment. 😊

[HoloMoto]

@Cameron-Micka
I've incorporated the Corrections !
It certainly needed to be used in conjunction with DistanceLight!
Also fixed the overlap between NPRRendering and Rendering. (I need to get better acquainted with the English language...)

[Cameron-Micka]

Tested the latest changes, thank you for responding to the feedback. It looks wonderful! This is good to merge after fixing the "Could not find MaterialProperty" exception and fixing the small merge conflicts. 😊

[HoloMoto]

@Cameron-Micka
Thank you!
I've corrected the two points you made!

[Cameron-Micka]

Looks great! This is ready to merge.