[Lazarus] TListView review required

[dmitry boyarintsev]

Hello,

First of all i appologize for being out-of-community and answering
this laet. my primary job is keeping me busy.

But anyway. There's only one real solution - make a stand-alone
control. And make it "non-owned" data (without any options), as it
should be. Using System themes can make it look exactly like a system
control, so no issues on "native look". Also, creating such control
automatically gives the implementation for any possible widgetset.

As for ListView as it is now.  I planned to add TOwnerDataListItems,
when I implemented OwnerData for Win32 in the first place, just to
prevent more bugs to be reported, as well as easier "index" handling.
So, I don't think it should go away, the bugs that it is causing
should be addressed. 

thanks,
Dmitry