- move the input loop from gstlal_inspiral_marginalize_likelihood to a function in far.py
- replace input lops in gstlal_inspiral_calc_likelihood, gstlal_inspiral_calc_rank_pdfs, gstlal_inspiral_marginalize_likelihood, gstlal_inspiral_plot_background, gstlal_inspiral_plotsummary, gstlal_inspiral_rate_posterior with calls to this function