Draft: Fix lifetime functor

Work towards resolving #204 (closed).

To do:

• Update the SOA implementation to match the legacy one.
• Verify whether all features of the LoKi implementation must be implemented here (e.g. vertex transport).
• Think about how to propagate the various failure modes (e.g. failure fit).
• Try to unify the legacy and SOA implementations using helpers.

To follow up

• Use the fix in the bandq modules @mengzhen

/cc @agilman @mramospe @mvesteri @poluekt @shunan @abertoli