Remove samples for moon.GridList, moon.List

Also remove samples for Filter Lists in Moonstone.

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@lge.com)
Update README.md with copyright and license info

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@lge.com)