weston-ini-conf: Add virtual display and record for CES2017 demo

weston-ini-conf: Add virtual display and record for CES2017 demo

 In order to support IVI-Cluster demo, virtual display and
gst-recorder parameter are set in weston.ini.

 If you want to use virtual output system, set "virtual-display"
in DISTRO_FEATURES. Then the sample value is enabled.
 If you want to use transfer system to multi ECU via H.264,
set "gst-record" in DISTRO_FEATURES.

This feature is commited to DD[1]. After that he weston-ini-conf
is updated. This commit is same result as that time.

Note:
 These system are supported in R-Car M3 and H3 only.

[1] https://gerrit.automotivelinux.org/gerrit/#/c/9907/
[2] https://gerrit.automotivelinux.org/gerrit/#/c/10847/

Change-Id: I1f7b9af5dc0e459aa49d336ed5ba0cebaf8adab2
Signed-off-by: Harunobu Kurokawa <harunobu.kurokawa.dn@renesas.com>