Write a method that takes a string of curly brackets and returns true if the brackets match up and false if they dont.

These are examples of brackets matching:

{} {}{} {{}} {{{}{{}}}}

These are examples of the brackets not matching:

{ }{ {{} {{}}}{}

If you are passed the empty string, you should return true.

You can assume the given string will only have { and } in it (or be empty).

public boolean bracketsMatch(String brackets) { }