Add new persistent versions of TgcRdo and TgcRawData for forward-compatibility with 22.0.X
These changes follow the changes in !53980 (merged) for 22.0.
They do not change the output of 21.0-mc16a, but are necessary for this
branch to be able to read in RDOs produced in 22.0 and master once these branches are switched to write out the _p4
persistent versions of TgcRawData
and TgcRdo
.
Edited by John Derek Chapman