This is used in mirtCAT
to create a random session name so that
shiny
knows which environment to select objects from when multiple CAT
sessions have been initialized.
createSessionName(n = 30, datetime = TRUE)
a list containing the internal environmental components for mirtCAT
number of upper/lower characters to sample
logical; include the current date/time the function was called in the string as well? This further helps with the uniqueness of the generated string