[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
[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
[usecase-webapi] Improve vibration for misc usecase w3c

- Use vibration "on/off" button and button style "center"

Impacted TCs num(designed): New 0, Update 1, Delete 0
Unit test Platform: Tizen M0
Tizen test result summary: Pass 1, Fail 0, Blocked 0
extract some common steps into libiary
[usecase-webapi] Improve SIMD usecase

- Adjust the case with screen view

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: [Andriod]
Test result summary: Pass 1, Fail 0, Blocked 0
[usecase-webapi] Improve the w3c usecase for HrtimeTizen
[usecase-webapi] Improve the usecase for HrtimrAndroid

- Change button to "Waiting" when play, and disable the button. Change back when play end.
- Put the result info "The time of video playing is" below the play button.
- Remove "Android" and "Tizen" in test purpose

Impacted tests(designed|approved): new 0, update 1, delete 0
Unit test platform: [Android]
Unit test result summary: pass 1, fail 0, block 0
Update pack script and BDD test framework.
[webapi][XWALK-432] Add 58 Tcs for nfc

- Failure analysis: nfc does not support

Impacted tests(approved/designed): new 58, update 0, delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: pass 0, fail 12, block 0
[wrt]update manual/auto test suite
[usecase-webapi] Improve Flexible w3c usecase

- Draw the flex box one by one in the first page
- Give a meaningful description of pass/fail criteria whether in sub test title, or case details.

Impacted tests(approved): new 0, update 1, delete 0
Unit test platform: [Tizen IVI][Android]
Unit test result summary: pass 1, fail 0, block 0
Add check url and click element coords steps
[webapi][XWALK-562] Combine user.js and cssstyle.js to support.js
[wrt] Remove unused appsource and update tcs for packertoolmanu
[wrt] update all manual/auto test suite
Merge pull request #462 from zhangjingx/zhangjingx/webapi/nfc

[webapi][XWALK-432] Add 58 Tcs for nfc
Merge pull request #505 from yunxliu/yunxliu/webapi/mediaRenderer

[webapi][XWALK-1195] Add 44 tests for mediaRenderer
[usercase-webapi][XWALK-432] Add usecase for w3c nfc

-Fail Reason: nfc does not support
Impacted tests(designed): New 1, Update 0, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 0, Fail 1, Block 0
Update tests for atip new steps
[usecase-webapi] Add usecase for sso.

-Fail Reason: tizen.sso not implement.

Impacted tests(designed): New 1, Update 0, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 0, Fail 1, Block 0