Fix registration of HLT2 IFT lines in rate tests
This MR fixes an issue in the registration of IFT lines (only SMOG2 lines for the moment). Currently, the wrong naming of the lines prevents them to be registered as “IFT” in the nightly tests, and they seem to be appearing in the “Other” category. Check for instance this test with respect to this other test. The second test is 1 day prior to the MR Moore-!1972 that included the lines, and the "Other" category sees an increase from 101 to 126 which should correspond to the added IFT lines.
The MR renames the lines by adding IFT after Hlt2, followed by an _
. Example: ´Hlt2SMOG2D02KK´ —> ´Hlt2IFT_SMOG2D02KK´. Now we followed the WG naming that appears in RateTestHandler.py (https://gitlab.cern.ch/lhcb-core/LHCbPR2HD/-/blob/master/handlers/RateTestHandler.py#L193)
cc @mstahl