Reordering

Created a library Reordering which is ment to be an alternative for Binary and Continous.
Added the example traveling_salesman.hs to demonstrate how it works.

There is administrative work to do: I couldn't manage to import and export the functions the way I wanted. Thats why the example is in the wrong directory. Sorry, but I am still learning.
please don't leave commented code in the files; git will help to recover it later if it is needed