Peter M. Groen / dali-demo

  - Fix mismatch between <ui...> and </ui..>
  - Add DALI_EXPORT_API
  TODO> Example launch issue in dali-demo

Change-Id: I3c685d79c725e08d3798eb9e906734effd1a2fd0

add perf-scroll sample for measuring performance on tizen target.

you can use two options.

--use-mesh  :  use "mesh" to make images.( use imageView by default )
-t30        :  set duration.( In this case, duration will be 30 second )

Change-Id: Ib2caca45bed12a62e3e9d6b57fb240aa21579e0c