Refactor VisorDataTransferObject to common class

Initially VisorDataTransferObject was implemented to use with Visor CMD only.

But I see that now it is using together with control.sh utility.

And it looks strange that some classes not related to Visor use some Visor-specific class.

Lets move this class to "org.apache.ignite.internal.dto" package with name IgniteDataTransferObject and deprecate VisorDataTransferObject (with removal in 3.0).