Nominating Zhifeng Jiang <Jiang.Zhifeng@zte.com.cn> as new committer for QTIP project.

Nominating Zhifeng Jiang <Jiang.Zhifeng@zte.com.cn> as new committer for QTIP project.

Zhifeng has been contributed a majority of code to QTIP since last season[1][2].
I believe she will help QTIP project to make a success in next release.

All qtip committers, please vote +1 or +2 if you support this nomination [3].

This patch reopens #19141 [4]. Please DO NOT merge until we get a majority.

[1] http://stackalytics.com/?project_type=opnfv-group&metric=commits&module=qtip
[2] https://git.opnfv.org/cgit/qtip/log/?qt=author&q=jiang.zhifeng%40zte.com.cn
[3] https://wiki.opnfv.org/display/DEV/Committer+Promotions
[4] https://gerrit.opnfv.org/gerrit/#/c/19141/

Change-Id: I59123ab8b10098e0b959d732b8ee7e0f0bedb0d1
Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>