Takes any number of lists and appends them together as one list
(append [list ...])
Arguments
A list.
Return Values
A list with all arguments appended to the original. If no arguments are supplied, append returns nil.
Examples
Command: (append '(a b) '(c d))
(A B C D)
Command: (append '((a)(b)) '((c)(d)))
((A) (B) (C) (D))
