Don't Render Fully Qualified Name in Default Debug Renderer

[adamgfraser]

Currently the default renderer for Debug renders the fully qualified name of each constructor. So for example a Validation instance would be rendered as zio.prelude.Validation.Failure(zio.Chunk("some string")) whereas the rendering given by toString would be Failure(Chunk("some string")). While valid and perhaps optimal for compiling the rendering back to Scala, this is not the best default as it can lead to cluttered output when the constructor is deeply nested and inconsistent behavior depending on whether the user calls debug.render and toString even for user created types.

We should change the default renderer to render to unqualified name and add an additional renderer to render the fully qualified name. We can then test that the default rendering is equivalent to toString for all standard types.

[ghost]

ill do it

[adamgfraser]

Awesome!