ENYO-251: Add iLib to ExpandablePickerSample

iLib was not included in ExpandablePickerSample.html, which
resulted in the sample behaving differently inside the Sampler
from outside. (TimePicker omits the meridiem by default if iLib
is not present.)

Enyo-DCO-1.1-Signed-Off-By: Gray Norton (gray.norton@lge.com)
Merge pull request #1616 from enyojs/ENYO-251-graynorton

ENYO-251: Add iLib to ExpandablePickerSample

Looks good!

Reviewed-by: Aaron Tam (aaron.tam@lge.com)