minimal patch to transverse boost, port to `Sim09-upgrade`
Port the changes in branch 'LHCBGAUSS-1862' for 'master' into 'Sim09-upgrade'
See original merge request !535 (merged) for master
. It also corresponds to !545 (merged) for Sim09
(cherry picked from commit 4982c831)
c23134c6 minimal patch to transverse boost