[Lazarus] Adding Mac specific functionality

[Ryan Joseph]

I submitted a patch to correct the problem. WantsTab property of TMemo should affect the focus ring on Mac.

https://bugs.freepascal.org/view.php?id=35016

> On Feb 5, 2019, at 9:24 AM, Ryan Joseph via lazarus <lazarus at lists.lazarus-ide.org> wrote:
> 
> I’m working on a Lazarus program for another person and I’d like to use a feature of the Mac Cocoa framework which doesn’t exist in Lazarus. 
> 
> I’m happy to add this myself and submit a patch (because it’s helpful for other users) but what is the protocol for doing this? I could add an accessor function into the control (TMemo) but it would route to a Cocoa control and it wouldn’t have any affect on Windows/Linux.
> 
> Here is the code in question which I’ve added via an ifdef for now but Lazarus should expose “setFocusRingType” in the main interface because it’s important on OS X.
> 
>     {$ifdef DARWIN}
>     NSTextView(Memo1.Handle).setFocusRingType(NSFocusRingTypeNone);
>     {$endif}
> 
> Regards,
> 	Ryan Joseph
> 
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Regards,
	Ryan Joseph