Changes in the CondFormat necessary for migration to 6x6 APE 

This pull request represents the CondFormat part of the pull request proposed earlier: https://github.com/cms-sw/cmssw/pull/6316, with certain modifications described below. 

As was pointed out by @diguida changes in association between Records and condition classes are not allowed in the CMSSW.
Following this comment, new Records in CondFormats/Record mapped to the new classes have been created. Namely: TrackerAlignmentErrorExtendedRcd, DTAlignmentErrorExtendedRcd, CSCAlignmentErrorExtendedRcd etc.

Following lines were added in plugin.cc:

REGISTER_PLUGIN(TrackerAlignmentErrorExtendedRcd,AlignmentErrorsExtended);
REGISTER_PLUGIN(DTAlignmentErrorExtendedRcd,AlignmentErrorsExtended);
REGISTER_PLUGIN(CSCAlignmentErrorExtendedRcd,AlignmentErrorsExtended);
REGISTER_PLUGIN(EBAlignmentErrorExtendedRcd,AlignmentErrorsExtended);
REGISTER_PLUGIN(EEAlignmentErrorExtendedRcd,AlignmentErrorsExtended);
REGISTER_PLUGIN(ESAlignmentErrorExtendedRcd,AlignmentErrorsExtended);
REGISTER_PLUGIN(HBAlignmentErrorExtendedRcd,AlignmentErrorsExtended);
REGISTER_PLUGIN(HEAlignmentErrorExtendedRcd,AlignmentErrorsExtended);
REGISTER_PLUGIN(HOAlignmentErrorExtendedRcd,AlignmentErrorsExtended);
REGISTER_PLUGIN(HFAlignmentErrorExtendedRcd,AlignmentErrorsExtended);
REGISTER_PLUGIN(ZDCAlignmentErrorExtendedRcd,AlignmentErrorsExtended);