BHV-12262:update event hooking routine in Marquee.js to cache target pro...

## Issue
SimplePicker: Adding Items Triggers Marquee Jobs to Start Indefinitely

## Cause
Marquee has a ad-hoc event proccessing routine (dispatchEvent function), and event-cache routine didn't capture that handling information.

## Fix
update event hooking routine in Marquee.js to cache target properly

Enyo-DCO-1.1-Signed-off-by: Sungbae Cho sb.cho@lge.com