ENYO-23301: Start preview if necessary, when moving pointer in the slider.
ENYO-23301: Start preview if necessary, when moving pointer in the slider.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>

mcanthony/moonstone,enyojs/moonstone,mcanthony/moonstone,mcanthony/moonstone