Add paint tool, or group select, and adjust light for Destructible editor

While other tool and edior was made great work and performace, the destructible tool need more implenment.

First, the light in this tool totally failed in the other side, look on this picture.

Second, it 's really need a brush paint tool or a mouse drag rect to select multi chunks, i just dont want to setup “Do Not Fracture” = true for every single chunk selected and repeat that with 100 chunks!!! that waste to much time!!!