Added demo to compare performance between ImageActor and ImageView

Added demo to compare performance between ImageActor and ImageView

By default, the application consist of 10 pages of 25x25 ImageActors.

The default values can be modified using the following command line arguments:
 -r NumberOfRows  (Modifies the number of rows per page)
 -c NumberOfColumns (Modifies the number of columns per page)
 -p NumberOfPages (Modifies the nimber of pages )
 --use-imageview ( Use ImageView instead of ImageActor )
 --use-mesh ( Use new renderer API (as ImageView) but shares renderers between actors when possible )

Change-Id: I8a54bd713672433a6f80726972f15d698509dbbe