Add DefaultProperty annotation to ContextMenu

A DESCRIPTION OF THE REQUEST :
javafx.scene.control.ContextMenu should have a @javafx.beans.DefaultProperty annotation set.

JUSTIFICATION :
Having a default property feels natural here. The developer is used to it, because other elements have it, too.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Writing the following in FXML:

                <ContextMenu>
                        <MenuItem text="item 1"/>
                        <MenuItem text="item 2"/>
                </ContextMenu>

ACTUAL -
You have to write the items tag as well:

                <ContextMenu>
                    <items>
                        <MenuItem text="item 1"/>
                        <MenuItem text="item 2"/>
                    </items>
                </ContextMenu>