Added robostore map

[JoeSiu]

What this contains

This adds a new scene "robostore" based on the robocarstore standard track

Features:

Random background

When enabled the script, the background will be randomly changing according to the speed value. There are 20 HDRI backgrounds included

Random track color

When enabled the script, the material will switch to a new random color according to the speed value. It is based on HSV + alpha and the randomness is customizable.

The above 2 features should help generate more variations of data used for training.

Demo:

https://user-images.githubusercontent.com/38518793/128810143-d88ed817-4e81-4161-a347-b0be0fb3ece5.mov

Credits:

• HDRI maps from https://hdrihaven.com at CC0 license

[Maximellerbach]

Thanks a lot ! I will have a look at it !