Expand minimalInformative and Quantiles2LogisticNormal functions to work also for LogisticLogNormalSub

Implement backfill cohorts simulations

`futile.logger` update breaks 3 tests on CRAN

Upcoming vctrs 0.7.0 release

reduce per example page run times

Address CRAN minor example time threshold issue

Address CRAN issue

address CRAN check time issue

Address check problems

Unit tests for `R/Simulations-validity.R`