New detx calibration DB access
We need to implement the new accessors for detx information as seen in this path: https://git.km3net.de/common/dbclient/commit/3ed7fc2d7492364ea3db794f948b6432752cb17c#1ed763076352faf4fb9d3836371be6a3e7012921
This deprecates #182 (closed)