listmap `Scol 5.3 or above required`

Performs a map from a list. Create a new list from an existed list : each element is treated by a function and the result put in the new list.

fun [fun [u0] u1 [u0 r1]] [u1 r1]

Return : [u1 r1] the new mapped list or nil if error

listmap Scol 5.3 or above required