TODO long term
More built-in common study designs for EVSI, e.g. binary trial that just informs the odds ratio.
Different regression methods and options for effects and costs (e.g. int.ord)
Features that I don’t plan to implement myself, but would accept cleanly-written contributions for (see coding_style.md)
Parallel processing for 2 level Monte Carlo, and partial results for convergence checking
Gaussian Approximation EVSI method
MLMC and QMC methods
2-level Monte Carlo EVSI
Check can reproduce results from ConVoI 1 four case studies
Standard errors for EVSI methods and INLA EVPPI method