Picnic $($IN POWERSHELL PLEASE$)$

Write a program that will correctly format the items we're taking on our picnic. For one item, it should print the one item.

PS C: $>.\backslash$picnic$.$ps$1$ sandwiches

You are bringing sandwiches.

For two items, place "and" in between:

PS C:$>.\backslash$picnic$.$ps$1$ sandwiches chips

You are bringing sandwiches and chips.

For three or more items, use commas and "and":

PS C:$>.\backslash$picnic$.$ps$1$ sandwiches chips cake

You are bringing sandwiches, chips, and cake.

If the $-$sorted flag is present, the items should first be sorted:

PS C:$>.\backslash$picnic$.$ps$1$ sandwiches chips cake $-$sorted

You are bringing cake, chips, and sandwiches.