Update: Window Manager and window manager libraries

Update: Window Manager and window manager libraries

This commits includes

* agl-service-windowmanager-2017

8ab10aa Enable scaling to fit various screen resolutions
6e8ca74 Forbid negative value for area size
c3c3679 Rename event names to lower camel case
3bc52b7 Rename APIs
cc3c6dd Add new layers and rename existing layers
dd72b1c Add configuration file for each area sizes
cf05c2b Convert the roles from old one to new

* libwindowmanager

40ec1cb Rename event names to lower camel case
5f3b684 Rename APIs
4b30680 Revert "Change Visible and InVisible event to broadcast"

* qlibwindowmanager

d5d31fe Rename APIs

Change-Id: Ic22b55f72eb30577b8fc55491e4d24d2e2b40cb0
Signed-off-by: Kazumasa Mitsunari <knimitz@witz-inc.co.jp>