Baselines for galaxy zoo

[dustinvtran]

@dustinvtran

@murphyk Their experiments seem like a great application (and are open-source).

M. Walmsley et al., “Galaxy Zoo: Probabilistic Morphology through Bayesian CNNs and Active Learning,” Mon. Not. R. Astron. Soc., vol. 491, 2020 [Online]. Available: http://arxiv.org/abs/1905.07424

https://github.com/google/edward2/issues/306