Determines if the name is a valid distribution name
Examples
check_empty_beautier_folder()
# TRUE
is_distr_name("uniform")
#> [1] TRUE
is_distr_name("normal")
#> [1] TRUE
is_distr_name("one_div_x")
#> [1] TRUE
is_distr_name("log_normal")
#> [1] TRUE
is_distr_name("exponential")
#> [1] TRUE
is_distr_name("gamma")
#> [1] TRUE
is_distr_name("beta")
#> [1] TRUE
is_distr_name("laplace")
#> [1] TRUE
is_distr_name("inv_gamma")
#> [1] TRUE
is_distr_name("poisson")
#> [1] TRUE
# FALSE
is_distr_name("nonsense")
#> [1] FALSE
check_empty_beautier_folder()