TrigT2CaloEgamma: Cleanup

This is a second round of cleanup in for the TrigT2CaloEgamma package:

• Remove obsolete TrigTimerSvc from IReAlgToolCalo base class and all of its uses in derived classes.
• Cleanup python configuration
• Run clang-format to get uniform code formatting
• Remove a lot of commented code
• Fix unchecked StatusCode in calls to loadCollections
• Use new-style properties in T2CaloEgammaReFastAlgo
• Cleanup of message logging

Note to shifter: Due to automatic re-formatting of the code, you may want to use the "hide whitespace" feature