Remove parent type on inspect string for sum types

[evilsoft]

What does that even mean?!?

Found that prefixing the type was so gross in practice. After seeing something that @joneshf did with his toString function on his Trees read sooo much better. So we gonna drop dat type from the inspect string. So instead of Maybe.Just 23, only going to show Just 23

[coveralls]

Coverage remained the same at 100.0% when pulling 46fce76 on better-sum-type-inspects into f07abc5 on master.

[evilsoft]