Added performance tests with support DSA in RxTxApp.

Multi-session performance tests are now available for 25, 30, 50, and 59 FPS with and without DSA usage. Currently, only FPS metrics are measured. Additional KPIs will be enhanced in the future.

Signed-off-by: Wilczynski, Andrzej <andrzej.wilczynski@intel.com>

Author: awilczyns