Add Dp Ds Lc electron lines for SL
New SL lines to cover DenuX for D+, Ds+, Lc+
Rate tests with/without these lines can be found in
/afs/cern.ch/work/g/gligorov//public/ElectronEfficiency/SLLines/
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New SL lines to cover DenuX for D+, Ds+, Lc+
Rate tests with/without these lines can be found in
/afs/cern.ch/work/g/gligorov//public/ElectronEfficiency/SLLines/