MdtCalibrationDbSvc MT migration v1

Callback functions and member data cache are removed from MdtCalibrationDbSvc using ReadCondHandle. For example derived data in "RtKey" was originally recorded by MdtCalibDbCoolStrTool reading raw data from "/MDT/RTBLOB", and the data was provided via detector store removing previous IoV data. In AthenaMT, derived data must be provided by an Alg via the condition store. This time new Alg with WriteCondHandle (MdtCalibDbAlg) is added to the condition sequence. The Alg will be scheduled properly and multiple IoV data will be stored. ESD output of the combined rec example was ok (diff-root-06.txt).