Map of CDB storages and list of CDB object Id's used for the reconstruction are

Map of CDB storages and list of CDB object Id's used for the reconstruction are
now written to the ESD tree's UserInfo.

The storage map (named "cdbMap") is a list of TObjString pairs. The key is "default" or the paths
for which the specific storages are accessed, e.g.:

key		value
"default"	"local://$ALICE_ROOT"
"TPC/Calib/*"	"local://TPC_SPECIFIC"
...

The list of retrieved objects (named "cdbList") is made of the AliCDBId's of the retrieved data.

To get them:

TFile * f = new TFile("AliESDs.root");

TTree* tree = f->Get("esdTree");
TList* l = tree->GetUserInfo();

TList* ids = l->FindObject("cdbList");
ids->Print();

TMap* storages = l->FindObject("cdbMap");
storages->Print();