Various trigger menu updates in 21.3 November 2019

This merge request includes various additions/removal/restructuring in MC_pp_v8.py in 21.3:

• https://its.cern.ch/jira/browse/ATR-19309

  • add j55_gsc80_boffperf_j45_gsc55_boffperf_j28_j20_AND_j28_b40_j20_b40_L1V1

• https://its.cern.ch/jira/browse/ATR-20450

  • add HLT_tau35_mediumRNN_tracktwoMVA_tau25_mediumRNN_tracktwoMVA_L1TAU20IM_2TAU12IM_4J12.0ETA25 HLT_tau35_mediumRNN_tracktwoMVA_tau25_mediumRNN_tracktwoMVA_L1TAU20IM_2TAU12IM_4J12.0ETA28 -> Requires 2 new L1 items and thresholds. In Menu_MC_pp_v8.py, this required removing "J30.0ETA49" and "J20.0ETA49" (and all related items calling this threshold in v8) to allocate the two new thresholds.

• https://its.cern.ch/jira/browse/ATR-19178

  • set trigger type to TT.ftk for L1_TE5 https://gitlab.cern.ch/atlas/athena/blob/21.3/Trigger/TriggerCommon/TriggerMenu/python/l1menu/ItemDef.py#L841

• https://its.cern.ch/jira/browse/ATR-17320

  • remove CEP-CJ50s6ETA21 everywhere

• No JIRA,

  • add j70_j50_0eta490_invm1000j70_dphi20_deta40_L1MJJ-500-NFF

• Restructuring and putting together all items under "doFTK", at the end of all signatures without FTK.