Shift loglikelihood bugfixes

[Neves-P]

Still need to add patchnotes to NEWS.md. I'll try on Tuesday, but go ahead if you'd like to fill them in before.

[codecov-commenter]

Codecov Report

Merging #161 (560c371) into develop (ebf13e6) will decrease coverage by 1.43%.
Report is 3 commits behind head on develop.
The diff coverage is 73.80%.

❗ Current head 560c371 differs from pull request most recent head ca7cbb2. Consider uploading reports for the commit ca7cbb2 to get more accurate results

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@@             Coverage Diff             @@
##           develop     #161      +/-   ##
===========================================
- Coverage    68.54%   67.11%   -1.43%     
===========================================
  Files           78       79       +1     
  Lines         7964     8123     +159     
===========================================
- Hits          5459     5452       -7     
- Misses        2505     2671     +166     

Files	Coverage Δ
R/DAISIE_ML1.R	82.50% <100.00%> (-0.77%)	⬇️
R/DAISIE_ML_CS.R	41.26% <ø> (ø)
R/DAISIE_SR_loglik_CS.R	29.55% <100.00%> (-55.37%)	⬇️
R/DAISIE_loglik_CS.R	81.27% <100.00%> (-0.86%)	⬇️
R/DAISIE_utils.R	55.31% <ø> (ø)
R/create_pars.R	71.15% <ø> (ø)
R/DAISIE_loglik_integrate.R	88.41% <75.00%> (-0.48%)	⬇️
R/DAISIE_loglik_CS_shift.R	71.71% <71.71%> (ø)

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