[usecase-webapi] Improve SVGTransformation usecase.

- Add description fot the animation.
- Add start position and end position on the screen.
- Improve pass cretia in info.

Impacted tests(approved): New 0, Update 1, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 1, Fail 0, Block 0
Merge pull request #585 from minxhuang/hm/misc/usecase-w3c/SVGTransfomation-hotfix

[usecase-webapi] Improve SVGTransformation usecase.