[functional][u] Add an extra unique worker class to each worker host
|Target version:||QA - future|
Sometimes a bug happens in a specific worker host. When trying to debug, we don't have a way of specifying in a job, which worker host to pick.
It would be useful for debugging to have a unique worker class name, so that a job can be set up to pick a worker instance from a specific worker host.
# 16 cores
- AC1: A job can be set up to be picked by a specific worker host.
- AC2: Worker hostname is added as worker class automatically by salt.