[webapi] Integrate 64 tests for fileAPI

- designed: 6, approved: 58
- 'filelist.html' has been updated already

Impacted tests(approved): new 58, update 0, delete 0
Unit test platform: [Tizen IVI][Android]
Unit test result summary: pass 58, fail 0, block 0
Merge pull request #1148 from yunxiaoxie/move-FileAPI

[webapi] Integrate 64 tests for fileAPI