Function b3InitUserDebugDrawAddLine3D 

pub unsafe extern "C" fn b3InitUserDebugDrawAddLine3D(
    physClient: b3PhysicsClientHandle,
    fromXYZ: *const f64,
    toXYZ: *const f64,
    colorRGB: *const f64,
    lineWidth: f64,
    lifeTime: f64,
) -> b3SharedMemoryCommandHandle

Add/remove user-specific debug lines and debug text messages