[wrt]Add WebRTC test webapp to suite
[Detailed commit message (if have)]
Impacted TCs num(approved):New 0,Update 2,Delete 0
UT result: Pass 2, Fail 0, Block 0
pack the webrtc to wgt and launch on the ivi ok
Merge pull request #1220 from linshen/shenlin/update-webrtc

[wrt]Add WebRTC test webapp to suite