[webapi][XWALK-1877] Add cases to test attributions and methods of sso.

- Block Reason: tizen.sso not implement.

Impacted tests(approved): New 28, Update 0, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 0, Fail 0, Block 28
[embedding][XWALK-895] Add new embedding api tests for crosswalk

- Add 80 cases about the unit tests for embedding api
- Failure analysis:8 cases are failed because the methods of embedding api are not exist.
Others are failed or blocked because the methods of embedding api do not support.

Impated TCs num(approved): New 80, Update 0, Delete 0
Unit test platform: [Android]
Android Test result summary: Pass 68, Fail 12, Blocked 4
[misc-usecase][XWALK-442] Add a Tc for datacontrol

- Add a datacontrol TC for operating datas of the table

Impacted tests(approved): new 1, update 0, delete 0
Unit test platform: [Tizen IVI][Tizen M0]
Unit test result summary: pass 1, fail 0, block 0
Merge pull request #444 from zhuyongyong/yongzhu/embeddingAPI-UnitTests/add

[embedding][XWALK-895] Add new embedding api tests for xwalk
Merge pull request #446 from yunxliu/yunxliu/misc/dataControl

[misc-usecase][XWALK-442] Add a Tc for datacontrol
Merge pull request #460 from minxhuang/hm/webapi/sso

[webapi][XWALK-1877] Add cases to test attributions and methods of sso.