PPM decoders - support uncomressed ROD format

* Need to be tested on real data
* Adapt PPM decoders code for use ATH_XXX_MSG


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Trigger/TrigT1/TrigT1CaloByteStream/trunk@630148 4525493e-7705-40b1-a816-d608a930855b
Fix external BCID bit position in PPM decoder


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Trigger/TrigT1/TrigT1CaloByteStream/trunk@630477 4525493e-7705-40b1-a816-d608a930855b