fix the metadata in RAW_FTK to be IS_DATA
The Metadata in RAW_FTK files produced in the BSFTKCreator step of Reco_tf was incorrectly being set to IS_SIMULATION because of this linein RecExCommon_topOptions.py: https://gitlab.cern.ch/atlas/athena/blob/21.3/Reconstruction/RecExample/RecExCommon/share/RecExCommon_topOptions.py#L1599
But rather than mess with RecExCommon_topOptions.py, I have made a fix in skeleton.BS_FTK_Creator.py and tested that the files written now have the correct meta data and can be read correctly.
This fixes the issue in ATR-19566
Edited by John Baines