[M120 Migration][VD][Accessibility] TV customization of accessibility

[M120 Migration][VD][Accessibility] TV customization of accessibility

1. TTS does not output for blur and focus on the same node

2. Ignore uncheck event for radio button

3. Do not emit children-changed::remove when subtree will be deleted

4. Avoid description and name completely same

5. Set focus ring color to blue on tizen TV

6. Show focus ring on tv browser

References:
  - https://review.tizen.org/gerrit/#/c/291477/

Change-Id: I183f4702cd43744f8f4bc7fb12a40bcdb74f2b7a
Signed-off-by: jiangyuwei <yuwei.jiang@samsung.com>