Onscreen Rendering support based on Ozone EFL

Onscreen Rendering support based on Ozone EFL

This commit enables onscreen rendering with OzonePlatform for
EFL and brings up content shell/chrome for desktop and tizen.

Launch on Desktop:
a. export EVAS_GL_NO_BLACKLIST=1
b. cd out.x64/Dependencies/Root/lib64/
c. export LD_LIBRARY_PATH=$PWD:$LD_LIBRARY_PATH
$ ./out.x64/content_shell --no-sandbox --ignore-gpu-blocklist
  --use-gl=egl --ozone-platform=efl
$ ./out.x64/chrome --no-sandbox --ignore-gpu-blocklist --use-gl=egl
  --ozone-platform=efl --window-size=800,600

Launch on TV:
$ /usr/lib/chromium-efl/chrome --no-sandbox --ozone-platform=efl
  --window-size=1920,1080 --in-process-gpu
$ /usr/lib/chromium-efl/content_shell --no-sandbox --ozone-platform=efl
  --content-shell-host-window-size=1920x1080 --in-process-gpu

References:
https://review.tizen.org/gerrit/268952/
https://review.tizen.org/gerrit/268957/
https://review.tizen.org/gerrit/269004/

Change-Id: Ia6448ab7ee939e53829873311f2ce0285390a617
Signed-off-by: Chandan Padhi <c.padhi@samsung.com>