Fixed samples to use open-source Onyx widgets

Code from Alex Balashenko. Fixed the numeric and date formatting
explorers to use the open-source enyo Onyx widgets because this code
is open source as well. Moved the RTL testing page out of these
samples.

Enyo-DCO-1.1-Signed-Off-By: Edwin Hoogerbeets (edwin.hoogerbeets@lge.com)