Dumper: DateTime should use inline value

[janbarasek]

Hello,

I think Dumper should use short single line value.

Now DateTime contains 3 properties:

But full value should be rendered as single line (Symfony profiler inspiration):

Thanks.

[petrparolek]

I think that it is bad idea. Dumper should show all public, protected and private properties of any objecz

[janbarasek]

I may have described the idea wrong. The goal is to render the preview data directly on the line without having to click on the detail. When listing very many data, scrolling through the dump is inconvenient.

[petrparolek]

I understand, cool feature