Refs #8958 Renamed algorithm files

The algorithm is being renamed, files have been renamed
Refs #8958 Renamed and refactored

The aglorithm has no been fully renamed from SaveANSTO to SaveANSTOAscii.

The test has also been heavily refactored to strip out some duplication, re-implement some parts in a way i've been advised to do and changed the testing to a better more strict way.

Windows now catches that nan that linux caught, as it was the way the stream opperator worked.