Add new L1Emulation sequence to all paths with simGctDigis, switch l1extra to sim or unpacked digis based on context
remove legacy simGctDigis from upgrade L1T emulation
fix python crash when no L1 simulation but customs called
remove some commented lines
Merge pull request #6589 from cms-l1t-offline/l1t-run-l1t-famos-bugfix-730

Run L1T emulation for Fast Simulation bugfix 730