Dali demo now works with the new grapics design

Dali demo now works with the new grapics design

> The Graphics api controller now accumulates all the secondary command buffers created by the SubmitCommands method.
> The accumulated secondary command buffers are only submitted at the end of the frame.
> This is needed because command buffers no longer reference the resources they use.
> Removed the call to QueueWaitIdle at the Present method of the swapchain. This call is not needed because synchronization is handled by a fence.

Change-Id: I010dfc848e009824eccaf9212a58a21c1b642d3d