NbWindow - passing data when closing

[ALapaque]

Issue type

I'm submitting a ... (check one with "x")

• bug report
• feature request

Issue description

Current behavior:

I'm using the nbWindow components to enable the user to do multitasking while he's working, so my nbWindow can be a form or things that they can reduce if they need to do something else fast. But the main problem of that is I can't pass anything the close action, so actually I've got to refresh my datatables if they're doing an edit or an add and so...

Expected behavior:

That would be great if on the close action we could pass a data like you did for the NbDialog

Steps to reproduce:

Related code:

DIALOG EXAMPLE :

this.dialogService.open(DialogNamePromptComponent)
      .onClose.subscribe(name => name && this.names.push(name));

EXPECTED :

this.windowService.open(DialogNamePromptComponent)
      .onClose.subscribe(name => name && this.names.push(name));

Other information:

npm, node, OS, Browser

Node : 12.16.3
OS: Windows 10

Angular, Nebular

"@nebular/eva-icons": "7.0.0",
"@nebular/theme": "^7.0.0",