[webapi] Use pkgcmd to get pkgids for widget02

- Update pkgcmd to get pkgids, and need to update the awk rule
[webapi] Update 8 tests for Web Audio API

Impacted tests(approved): new 0, update 8, delete 0
Unit test platform: [Android]
Unit test result summary: pass 8, fail 0, block 0
Merge pull request #1064 from kangxu/kangxu/webapi/tct-webaudio-w3c-tests/updatCase

[webapi] Update 8 tests for Web Audio API
Merge pull request #1059 from xinliux/xinliux/webapi/widget-pkgids

[webapi] Use pkgcmd to get pkgids for widget02
[usecase-cordova][xwalk-2692] Add share cookie test in inappbrowser

- Cordova In app browser plugin can share cookie with main page
- Fail reason: XWALK-2648

Impacted tests(approved): new 1, update 0, delete 0
Unit test platform: [Android]
Unit test result summary: pass 0, fail 1, block 0
[misc][XWALK-2578] Add app switching test to xwalk system

- Add test to verify programmatic switching of applications
Merge pull request #1041 from xinliux/xinliux/misc/add-wrapper

[misc][XWALK-2578] Add app swithing test to xwalk system
[usecase-cordova][XWALK-2330] Add usecase for Cordova Screenshot plugin

- Use Cordova Screenshot plugin to capture screenshot of xwalkView
- Fail reason: XWALK-2233

Impacted tests(approved): new 1, update 0, delete 0
Unit test platform: [Android]
Unit test result summary: pass 0, fail 1, block 0
[usecase-webapi] Fix similar test name marked same result

- For the test which name is similar will be marked with same result, use name filter to aviod the issue.
Merge pull request #1067 from haoxli/haoxli/usecase-cordova/xwalk-2692

[usecase-cordova][xwalk-2692] Add share cookie test in inappbrowser
Merge pull request #1069 from haoxli/haoxli/usecase-cordova/add-screenshot

[usecase-cordova][XWALK-2330] Add usecase for Cordova Screenshot plugin
[wrt][xwalk-2656] Update TCs and README file

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Android
Android test result summary: Pass 1, Fail 0, Block 0
Merge pull request #1073 from wanghongjuan/wanghongjuan/wrt/xwalk-2656

[wrt][xwalk-2656] Update TCs and README file
Merge pull request #1070 from haoxli/haoxli/usecase-webapi/fix-same-result

[usecase-webapi] Fix similar test name marked same result