Test Service Definition in Live Sim

[haudiobe]

We need to define a test service to test players. We prefer to add to Live SIM 2.

@dsilhavy @tobbee @yreznik please define

[haudiobe]

We add this to the test asset coordination @dsilhavy @tobbee @haudiobe

[haudiobe]

What variants should be tested:

• unavailable resources on one BaseURL forcing the client to act
• Representation and Adaptation Set that forces switching to a different AS/REP

If there are other test cases that should be created to support player development, please add to this issue,

[tobbee]

There is an Issue for livesim2 to connect to Dash-Industry-Forum/livesim2#196