[usecase] Add new SecureElement tests for tizen use case

- Add secure element tests
- This tests depend on some Secure Element

Impacted TCs num(designed): New 1, Update 0, Delete 0
Unit test Platform: Tizen M0
Tizen test result summary: Pass 0, Fail 1, Blocked 0
[misc][XWALK-1063]Add usecase for websetting

- Fail Reason: the spec is not supported

Impacted TCs num(designed): New 1, Update 0, Delete 0
Unit test Platform: [Tizen IVI]
Test result summary: Pass 0, Fail 1, Blocked 0
[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
 [behavior][XWALK-2146] Fix the bug that the 'Pass' button is disabled when click the 'Cancle CSS FullScreen' button.

Impacted tests(approved): New 0, Update 1, Delete 0
Unit test platform: [TIZEN IVI]
Unit test result summary: Pass 1, Fail 0, Block 0
[webapi][XWALK-1195] Add 44 tests for mediaRenderer

- Add 44 tests for mediaRenderer
- Failure analysis: MediaRenderer does not support

Impacted tests(approved): new 44, update 0, delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: pass 0, fail 4, block 40
[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
[uscase-webapi]update title name for webapi usecase
[usecase-webapi] Add new Vehicle tests for tizen usecase

- Add Vehicle Information Access API tests.
- Failure reason: can't get vehicle speed.

Impacted TCs num(designed): New 1, Update 0, Delete 0
Unit test Platform: Tizen M0, Tizen IVI
Tizen test result summary: Pass 0, Fail 1, Blocked 0
[webapi][XWALK-549]Modify test cases status for gamepad

- Fail Reason: the gamepad can not connect to android device.

Impacted TCs num(approved): New 0, Update 17, Delete 0
Unit test Platform: Andriod
Test result summary: Pass 0, Fail 17, Blocked 0
[misc-usecase][XWALK-1195] Add 1 test for mediaRenderer

- Add 1 test for mediaRenderer to scan for media renderers
- Failure analysis: MediaRenderer does not support

Impacted tests(approved): new 1, update 0, delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: pass 0, fail 1, block 0
[webapi][XWALK-2147] Add default color reference on page
[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
[usecase-webapi] Make usecase of Workers better.

- Modify the button name 'Start' to 'Calculation'.

Impacted tests(approved): New 0, Update 1, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 1, Fail 0, Block 0
[webapi] Update tests.xml format and change block case potion

- One case is block, becase of some case affect it, so put it in first potion.
- Format tests.xml

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Tizen IVI
Tizen test result summary: Pass 1, Fail 0, Blocked 0
[webapi][XWALK-522] Optimize the test cases for promises

Impacted tests(approved): new 1, update 3, delete 0
Unit test platform: [Android]
Unit test result summary: pass 4, fail 0, block 0
[usecase-wrt] modify wrt-usecase-tizen-tests

[Detailed commit message]
Unit test platform: [tizen]
Unit test result summary: pack to wgt/xpk, all tcs is showing normally
[wrt] Separate wrt-rtcore-android-tests into 3 suites
[misc] Update WebAudio test purpose to reflect XWALK-1993

- Reword the README.md
- Remove trailing space from pack.sh
[wrt] Fix issue for wrt-extensionmanu-android-tests
[wrt] Fix issue for wrt-packagemgtmanu-android-tests