Custom open/close events for Info Window component
- options to set custom open/close events for Info Windows attached to Markers;
- if open and close window is the same (e.g. 'click'), then Info Window visibility is being toggled by this event;
- available events: click, dblclick, rightclick, mouseover, mouseout;
- default behaviour is to show Info Window on "click" on Marker and hide only by click on close button on Info Window.