GF-58382: Dispatch all key events via Signals, regardless of input focus state.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>
Merge pull request #653 from enyojs/GF-58382-aarontam-RC

GF-58382: Dispatch all key events via Signals, regardless of input focus... - RC