Add unconfirmed planet around HD 26965 (40 Eri A)

[ajtribick]

• Parameters for HD 26965 from Díaz et al. (2018)
• 40 Eri BC orbit and masses from Mason et al. (2017)
• 40 Eri B temperature, radius and age from Bond et al. (2017)
• 40 Eri C metallicity from Newton et al. (2014)
• 40 Eri AB separation and position angle from WDS
• Coordinates, magnitudes, parallax and additional identifiers from SIMBAD