ENYO-4057: Update samples to use "renderInto" instead of "write".

Issue
-------
Enyo 2.5.0+ deprecates the `write` method, so the samples do not load.

Fix
----
Use the more standard `renderInto` method when loading samples.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>