Write a method addToFront(x, A)
that takes an integer x and an array of integers as an
argument, and that returns a newly created array holding
x at index 0 and holding all members of array A
after that, in the same order. For example, if x = 25
and A has size 4 and is as follows
A[0] = 14
A[1] = 71
A[2] = 5
A[3] = 21
then addToFront returns a new array (let's call it B just to
give it a name) containing
B[0] = 25
B[1] = 14
B[2] = 71
B[3] = 5
B[4] = 21