Add a variety of road-side barriers

[TheDuckCow]

Low priority, but wanted to retain the idea here: would be great if we can prepare a variety of different barrier assets compatible with the plugin. This video serves as great inspiration into the technicalities and varieties of road-side barriers, and also some of the dynamics we could consider.

Though the typical game wouldn't really need a car to actually be able to break through wire barriers or even metal side barriers, I found it quite fascinating how the the stakes holding up the metal barrier are designed to rotate and dissipate energy underground. Could be a more advanced dynamic, though non trivial to implemented most likely (and a niche case out of just providing multiple models).