DEV: neaten calibration marginalization to enable reconstruction

As an alternative to lscsoft/bilby!1234 (diffs) I removed the obstacle to the reconstruction in the way the likelihood is calculated. It turns out this was as simple as changing

return logsumexp(log_l_tc_array, b=time_prior_array)

to

return logsumexp(log_l_tc_array, b=time_prior_array, axis=-1)

The other changes are condensing two methods into one that allowed some of the control flow to be made more consistent.

changed the description

added 12 commits

• 279ddcf2...2061de43 - 11 commits from branch john-veitch:time-calibration
• ca4b03f1 - Merge branch 'time-calibration' into 'time-calibration-reconstruction'

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mentioned in merge request lscsoft/bilby!1234 (merged)

added 1 commit

• 88c52d2a - BUGFIX: add case of just time and calibration marginalzation

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Thanks @colm.talbot. This seems to work fine for my test case.

enabled an automatic merge when the pipeline for 88c52d2a succeeds

mentioned in commit ec10acda

merged