Adapt HLT1 TwoKsLine to new event model
The MR adapts the HLT1 TwoKsLine to the new event model.
Two new algorithms are added: FilterSvs and SvsPairCandidate. These create a CompositeParticle candidate made of two other CompositeParticles, hence the two KS. In FilterSvs selections are applied to the SV candidates.
FYI @thboettc @mvesteri @poluekt @eshields @dcampora @dovombru
Edited by Lorenzo Pica