Gets a character vector of the names of all the available distributions.
ssd_dists_all()
A unique, sorted character vector of the distributions.
ssd_dists_all()
#> [1] "burrIII3" "gamma" "gompertz" "invpareto"
#> [5] "lgumbel" "llogis" "llogis_llogis" "lnorm"
#> [9] "lnorm_lnorm" "weibull"