Rename likelihood
This MR changes the name of the default likelihood from Likelihood
to Gaussian
, see https://git.ligo.org/Monash/tupak/issues/55.
Currently, the old version still exists in the file. If a user calls likelihood.Likelihood
is will still work but give them a warning saying that the likelihood is deprecated. Do we want this? Or should it just fail and remove it now to avoid confusion later?