Implement the delayed_pause_resume feature.

Implement the delayed_pause_resume feature.

To enable delayed pause_resume,
conf.ini should have option for "visibility_change_delay=TIME_IN_DOUBLE"
And the widget_viewer_evas_set_widget_option should be applied individually.
value == 0 : Follow the global configuration
value == 1 : Disable the Delayed Pause Resume
value == 2 : Enable the Delayed Pause Resume

[model] Redwood,Kiran,B3(Wearable)
[binary_type] AP
[customer] Docomo/Orange/ATT/Open
[issue#] N/A
[problem]
[cause]
[solution]
[team] HomeTF
[request]
[horizontal_expansion]

Change-Id: Idb4e3d2b610c8bb58e26106211f74774f20dce1c