Problem 3. Recursion and HOFs Write the code for this problem in a file called p3.scala, within an object called p3. a) Consider this function written in a non-functional imperative style: // imperative, impure version: don't do like this def trueForAll_imperative(bools: List[Boolean]) : Boolean = { var Ist = bools while (Ist != Nil) { if (! Ist.head) { return false // CAUTION: non-functional, bad programming style to use return } else { Ist = Ist.tail } } true } Write a tail recursive pure function called trueForAll that returns the same values as trueForAll_imperative. Use the correct annotation