[misc-uiautomation] Add reference file for css3-color

Impacted tests: new 0, update 18, delete 0
Unit test platform: [Chromium]
Unit test result summary: pass 18, fail 0, block 0
Merge pull request #321 from chenxix/chenxi/misc-uiautomation/css3-colors

[misc-uiautomation] Add reference file for css3-color