Add the option to pass a bilby total_mass prior
What?
This MR adds the option to pass a bilby total_mass prior - default behaviour is unchanged i.e. no prior/constraint on total_mass.
Why?
Some waveform approximants, e.g. NRSur, require a total mass prior to be specified in addition to individual masses to provide an additional constraint.
Who?
This MR was prepared by @alexandresebastien.goettel and @daniel-williams.
When?
This MR is scheduled for inclusion in asimov 0.5.4.
Edited by Daniel Williams