R/use_orcid.R
    get_cre_orcids.Rdget ORCID ids from cre fields of Authors@R in packageDescription results
get_cre_orcids(pkgnames)returns NA if no ORCID provided in Authors@R for package description
get_cre_orcids(c("BiocPkgTools", "utils"))
#> BiocPkgTools        utils 
#>           NA           NA