add L1Topo eFEX multiplicities reading from Opt inputs to CTPSimulation

add L1Topo eFEX multiplicities reading from Opt inputs to CTPSimulation (ATR-23671) on behalf of Patrick Czodrowski, who is currently unavailable.

Changes trigger counts for eEM phase-1 items only, according to the CI tests that I ran.

I also ran test_trig_data_v1Dev_L1SimOnly_build.py but with 100 events instead of 20, and see the following diffs:

18,21c18,21
< L1_2eEM10                                                   0
< L1_2eEM15VHI                                                0
< L1_2eEM20VH                                                 0
< L1_2eEM8                                                    0
---
> L1_2eEM10                                                   2
> L1_2eEM15VHI                                                1
> L1_2eEM20VH                                                 1
> L1_2eEM8                                                    4
30c30
< L1_3jJ15p0ETA25_gXERHO40                                    0
---
> L1_3jJ15p0ETA25_gXERHO40                                  100
38c38
< L1_4jJ15p0ETA25                                             0
---
> L1_4jJ15p0ETA25                                           100
300c300
< L1_MU20_gXERHO30                                            0
---
> L1_MU20_gXERHO30                                            6
367,368c367,368
< L1_eEM10                                                    0
< L1_eEM15                                                    0
---
> L1_eEM10                                                   10
> L1_eEM15                                                    7
374,376c374,376
< L1_eEM20                                                    0
< L1_eEM20VH                                                  0
< L1_eEM20VHI                                                 0
---
> L1_eEM20                                                    7
> L1_eEM20VH                                                  6
> L1_eEM20VHI                                                 6
379,383c379,383
< L1_eEM22                                                    0
< L1_eEM22VHI                                                 0
< L1_eEM3                                                     0
< L1_eEM7_MU20                                                0
< L1_eEM8                                                     0
---
> L1_eEM22                                                    6
> L1_eEM22VHI                                                 3
> L1_eEM3                                                   100
> L1_eEM7_MU20                                                1
> L1_eEM8                                                    18
391,393c391,393
< L1_gXE50                                                    0
< L1_gXEPUFIT20                                               0
< L1_gXEPUFIT50                                               0
---
> L1_gXE50                                                  100
> L1_gXEPUFIT20                                             100
> L1_gXEPUFIT50                                             100
395c395
< L1_gXERHO50                                                 0
---
> L1_gXERHO50                                               100

which are only in eEM, jJ and gXE items.