DetCommon: add dqm_algorithms package
The dqm_algorithms library is used in offline DQ and at Point-1. For the latter case, we currently dynamically load the library from the Athena project. But this should be changed to DetCommon to ensure we use the same LCG layer as the tdaq release.
Having this in DetCommon also ensures that we are not accidentally introducing Athena dependencies in the DQM algorithms.
Edited by Frank Winklmeier