RungeKuttaUtils avoid repeat of const Amg::Transform3D& T = su->transform()...

RungeKuttaUtils avoid repeat of const Amg::Transform3D& T = su->transform() in many place, do it once and pass it

e.g

transformGlobalToFoo(const Trk::Surface* su,
                     ....
                     ){

const Amg::Transform3D&  T = su->transform();  
}

to

transformGlobalToFoo(const Amg::Transform3D&,
                     ....
                     ){
...
}