Convert numbers to and from Zeckendorf representation, using Fibonacci bases.

Put simply, Zeckendorf representation is a maximally efficient self-terminating encoding for whole numbers (integers > 0). Each representation ends with '11', and '11' cannot appear anywhere in a representation (due to the way the representation is constructed). Smaller numbers get smaller representations, so it's good for representing values such as array numbers, object IDs and other identifiers that are usually numbered from 1.

Zecknum.to_zeck(44)
'010010011'

Converts a number to its Zeckendorf representation.

Zecknum.from_zeck('1000101000101001101011')
33156

Converts a Zeckendorf representation to its numeric equivalent.