Maximum+Number

**Maximum Number**
Write a program which accepts a set of numbers as inputs, and then calculates which of the numbers is the largest.

You should:
 * 1) Draw an Input-Process-Output diagram
 * 2) Draw a screen design, with labelled fields and buttons
 * 3) Produce a pseudocode design
 * 4) State any global variables which you will use
 * 5) Write the program

Hints: > Months(1) = "January" > Months(10) = "October" > NumberList > NumberList.Append(10) > Ubound(NumberList) > Note that the first element in an array is always the 0th
 * An [|array] can be used to store multiple data items of the same type. e.g. an array can be created to store the months of a year:
 * Arrays can be declared as global variables by adding brackets to the Declaration e.g.
 * New items can be added to arrays using Append e.g.
 * The number of elements in an array returned by Ubound e.g.
 * A possible screen layout is shown below