A/B Lines containers initialization from test files for NSW

As long as there is no database for the NSW alignment, with this MR a test file with format similar to that used for the old Muon Spectrometer technologies can be read and all the information for the ALines and BLines is passed and initialised to the corresponding containers in the MuonDetectorManager. For development/debugging purposes the code is currently called at initialization from MuonDetectorTool since for MC the Alignment sw isn't running. When the database is ready the code will be adapted accordingly.

adding @stavrop, @rosati and @nkoehler