Added specialized similarity transform

The similarity transform used by the track fit, and implemented in LHCbMath, is slightly too general for the matrices we are dealing with. This adds a (simple) explicit version which uses the symmetry in the transport matrices. It doesn't have any vectorised versions, yet. Should go together with Rec!2214 (merged)

mentioned in merge request Rec!2214 (merged)

assigned to @gunther

changed the description

added new feature label

/ci-test --platforms=x86_64-centos7-gcc9-opt,x86_64-centos7-clang8-opt Rec!2214 (merged)

added ci-test-triggered label

assigned to @ldufour and unassigned @gunther

added needs ref update label

assigned to @gunther and unassigned @ldufour

• [2020-09-18 09:54] Validation started with lhcb-master-mr#1336
• [2020-09-19 00:27] Validation started with lhcb-head-2#13
• [2020-09-21 00:20] Validation started with lhcb-head-2#14
• [2020-09-22 00:18] Validation started with lhcb-head-2#15
• [2020-09-23 00:11] Validation started with lhcb-head-2#16
• [2020-09-24 00:22] Validation started with lhcb-head-2#17
• [2020-09-24 17:30] Validation started with lhcb-master-mr#1362

added lhcb-head-2 label

resolved all threads

approved this merge request

changed the description

assigned to @dovombru and unassigned @gunther

mentioned in merge request Rec!2215 (merged)

added Tracking label

removed ci-test-triggered lhcb-head-2 labels

approved this merge request

merged