make_text_table: Make text table
In dtburk/texanaaid: An Aide for Text Analysis

Make a nicely-formatted plain text table.

1 2	make_text_table(col_list, headers, which_pretty = NULL, digits = rep(0, length(col_list)))

`col_list`	List of vectors containing the data for the columns of the table to be output.
`headers`	Character vector of column headers.
`which_pretty`	Integer vector containing column indices of columns to which `prettyNum` should be applied.
`digits`	Integer vector giving the number of digits to be displayed after the decimal for each column. This value will be ignored for non-numeric columns.