Add source screen to the close events of InputDialog

[Flaurite]

Environment

• Platform version: 7.2
• Client type: Web

Description of the bug or enhancement

Sometimes, after closing InputDilaog, we need to get more specific values, for instance, FileUploadFIeld, which contains fileId.
If FileUploadFIeld is used, so InputDialogCloseEvent will return only FileDescriptor as value and from this fluent code we cannot get FileUploadField:

dialogs.createInputDialog(this)
        .withCaption("InputDialog")
        .withParameters(InputParameter.fileParameter("inputFile"))
        .withCloseListener((InputDialog.InputDialogCloseEvent closeEvent) -> {
            FileDescriptor fileDescriptor = closeEvent.getValue("inputFile");
        })
        .show();

We have to add close listener after InputDialog is built:

        InputDialog inputDialog = dialogs.createInputDialog(this)
                .withCaption("Тест загрузки файла")
                .withParameters(InputParameter.fileParameter("inputFile"))
                .show();

        inputDialog.addAfterCloseListener(afterCloseEvent -> {
            FileUploadField field = (FileUploadField) inputDialog.getWindow().getComponentNN("inputFile");
            UUID fileId = field.getFileId();
        });

Proposal solution

Add to the close event getScreen() or getInputDialog() method:

dialogs.createInputDialog(this)
        .withCaption("InputDialog")
        .withParameters(InputParameter.fileParameter("inputFile"))
        .withCloseListener((InputDialog.InputDialogCloseEvent closeEvent) -> {
            InputDialog inputDialog = closeEvent.getInputDialog();
            FileUploadField field = (FileUploadField) inputDialog.getWindow().getComponentNN("inputFile");
            UUID fileId = field.getFileId();
        })
        .show();