ENYO-2288: add moonstone contextual popup components on palette
ENYO-2288: add moonstone contextual popup components on palette

Modified moonstone.design file.

Change:
- Add contextual popup component on ARES palette by modifying moonstone.design
- In this time, I just add a simple type ignoring various possible combination of enyo kinds for this component
- I hope that fast palette adding then need to get users' feedback & improvement by reflecting it.

Benefit:
User can add contextual popup easily.

Test Result:
It would be attached on gitHub log

Enyo-DCO-1.1-Signed-off-by: Sunggye <shiftpwr@gmail.com>

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