Initial Implementation of UUID Custom Type

[cnieves81]

Effectively, this PR is a wrapper around https://github.com/47degrees/memeid

Not every feature has been imported/wrapped. But, this PR should enable basic usage of UUID V1, V3, V4, and V5. There is an opportunity to extend the functionality to allow for utilizing other objects besides strings for UUID V3 and V5, but that does require some more work as the memeid library relies on an additional custom type Digestible

[DamianReeves]

I notice quite a few of the functions available for the UUID module in Elm is not available here, is that intentional?

[cnieves81]

@DamianReeves I added a commit with a few static namespaces + the nil check that is present in the Elm Module.

The UUID Type I'm wrapping does expose version and compare methods, but they are accessed on a UUID instance via:

uuid.version and uuid1.compare(uuid2) rather than elm's implementation which if I'm understanding correctly is accessed via version uuid and compare uuid1 uuid2, where the uuid is being passed in as a parameter to a static method. I could probably reimplement something closer to the latter if necessary.