Core packages are first fetched from a project-level configuration file (if found), else from a global configuration file (if found), 
otherwise the standard set of core packages is returned. In addition, if extensions = TRUE, any packages used to extend the fastverse for the current 
session (fetched from getOption("fastverse.extend")) are also returned.
fastverse_packages(extensions = TRUE, include.self = TRUE)logical. TRUE appends the set of core packages with all packages found in options("fastverse.extend").
logical. Include the fastverse package in the list?
A character vector of package names.
fastverse_packages()
#> [1] "data.table" "magrittr"   "kit"        "collapse"   "fastverse"