tests bsim: Add tests for unicast client/server samples

Add a test based on the unicase client/server samples
which runs them together and after waiting for a predefined
amount of time, checks how many audio packets has the
client received, and if over a threshold, passes the test.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
15 files changed