[misc-uiautomation] Add reference tests for uiautomation 

Impacted tests (approved): new 98, update 0, delete 0
Unit test platform: Chromium
Unit test summary: pass 98, fail 0, block 0
From the title, you want to create a reference file for the test file CSS3BG_border-image-outset_left_value_miss, which check the border-image-outset property. So you cannot create a reference with the same features.

See http://testthewebforward.org/docs/reftests.html#2-the-reftest-reference-file for how to create a reference file a reftest.