prepared to use new conditions DB with cmsDriver flag

Use new conditions DB via --useNewDB flag for cmsDriver:

    added new files with *_newDB names to be used when new conditions DB should be selected:
     - Configuration/AlCa/python/GlobalTag_newDB.py
     - Configuration/AlCa/python/autoCond_newDB.py
     - Configuration/StandardSequences/python/FrontierConditions_GlobalTag_newDB_cff.py
     - Configuration/StandardSequences/python/FrontierConditions_GlobalTag_newDB_cfi.py

    added new option "--useNewDB" flag for cmsDriver and modified ConfigBuilder to inlcude
    the corresponding new files as needed.