New test comparing HLT config with different N forks, threads, slots
HLT configuration must not depend on the number of forks, threads, slots. The new test runs athenaHLT --dump-config-exit
with LS2_v1 (aka Dev_v1) menu and compares the configuration dump JSON files between different combinations of forks/threads/slots. If there is any difference, it flags this as a failure.
There is currently always a difference due to ATR-20541 so the test will correctly fail, but we should still add it precisely to prevent more issues like this.
Tagging potentially interested people: @wiedenma, @stelzer, @mark, @fwinkl