Add Lb2L0ll production

Add 2011, 2012, and 2018 data production for the Lb2L0ll analyses, with the following decay modes:

• \Lambda_{b}^{0} \to \Lambda^{0} \mathcal{e}^{+}\mathcal{e}^{-}
• \Lambda_{b}^{0} \to \Lambda^{0} \mathcal{e}^{+}\mathcal{e}^{+}
• \Lambda_{b}^{0} \to \Lambda^{0} \mu^{+}\mu^{-}
• \Lambda_{b}^{0} \to \Lambda^{0} \mathcal{e}^{+}\mu^{-}
• \Lambda_{b}^{0} \to \Lambda^{0} \mathcal{e}^{+}\mu^{+}
• B^{0} \to K^{0}_{S} \mathcal{e}^{+}\mathcal{e}^{-}
• B^{0} \to K^{0}_{S} \mu^{+}\mu^{-}
• B^{\pm} \to K^{\pm} e^{+}e^{-}
• B^{\pm} \to K^{\pm} \mu^{+}\mu^{-}