Add Zeckendorf Project

[rzuckerm]

Create a new project based on Zeckendorf's Theorem (let's just call this "Zeckendorf" for brevity -- similar to Dijkstra for Dijkastra's Algorithm). The input is a non-negative integer. The output is a list of non-consecutive Fibonacci numbers in descending order whose sum is the input number. For example, 67 would output 55, 8, 3, 1, and 0 would output an empty list.