Fix running iOS tests with EME.
Fix running iOS tests with EME.

Now you can run iOS unit tests when including EME plugins.  This now
copies the frameworks to the output bundle so the tests can run.

Change-Id: Ib3a7409ec35f2b75731452237ed951ac273ce3e8

shaka-project/shaka-player-embedded,shaka-project/shaka-player-embedded,shaka-project/shaka-player-embedded,shaka-project/shaka-player-embedded,shaka-project/shaka-player-embedded