Create and use Faser MainServicesConfig.py

In AthenaConfiguration/MainServicesConfig.py, Atlas now explicitly calls AthenaGeoModel.GeoModelConfig.

As a result, we need our our version of MainServicesConfig.py to call FaserGeoModel.GeoModelConfig.

All python job configuration scripts must change

AthenaConfiguration.MainServicesConfig

to

CalypsoConfiguration.MainServicesConfig.

This has been done for all scripts in the repository, but private job configuration scripts must do likewise.

mentioned in commit a67bc80d

merged