Off by default but set with [Startup]ShouldUseFireAndForgetForCollsions=true
There is a problem with physics colliions sometimes stopping. One suspicion
is that the long callback path from the physics engine into the script engine
is causing problems. Enabling this feature passes the collision into the
script engine on a separate thread and not the main simulation thread.
Tester can enable this and see if the collsions stay around. If they still
fail, this commit should be reverted and another solution looked for.
fdb7a804fc