Adds alg & postInclude fragment to save detailed MBTS info in xAOD
The MR adds a trivial algorithm that copies data from TileCell MBTS collection to an xAOD collection. The latter can then be used in AtanlysiBase. It is needed for some specialised analyses.
FI @mdyndal @kciesla
Also tagging FI @stapiaar as this is an addition to HI global. We may actually consider scheduling this alg always for UPC and pp reference runs.
There comment for @kciesla - it seems that MBTSFex could be much simpler than it is now.