Fix slf4j runtime error

[mfitz]

Fixes #20

Before fix (Londinium model)

...
2024-02-12T21:01:08,335  INFO MatsimKpiGenerator:92 Recorded 6,738,668 relevant MATSim events from /Users/mickyfitz/gelato-data/londinium/Londinium/outputs/output_events.xml.gz
2024-02-12T21:01:08,338  INFO MatsimKpiGenerator:94 {
  "vehicle enters traffic" : 23906,
  "PersonLeavesVehicle" : 24072,
  "entered link" : 3321356,
  "PersonEntersVehicle" : 24072,
  "vehicle leaves traffic" : 23906,
  "left link" : 3321356
}
2024-02-12T21:01:08,340  INFO IOUtils:224 Resolved /Users/mickyfitz/gelato-data/londinium/Londinium/outputs/output_legs.csv.gz to /Users/mickyfitz/gelato-data/londinium/Londinium/outputs/output_legs.csv.gz
2024-02-12T21:01:08,341  INFO IOUtils:224 Resolved /Users/mickyfitz/gelato-data/londinium/Londinium/outputs/output_trips.csv.gz to /Users/mickyfitz/gelato-data/londinium/Londinium/outputs/output_trips.csv.gz
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
2024-02-12T21:01:08,553  INFO TablesawKpiCalculator:366 Creating Network Link Tables
...

After fix (Londinium model)

...
2024-02-12T21:13:45,807  INFO EventsManagerImpl:115  event # 4194304
2024-02-12T21:13:50,055  INFO MatsimKpiGenerator:92 Recorded 6,738,668 relevant MATSim events from /Users/mickyfitz/gelato-data/londinium/Londinium/outputs/output_events.xml.gz
2024-02-12T21:13:50,057  INFO MatsimKpiGenerator:94 {
  "vehicle enters traffic" : 23906,
  "PersonLeavesVehicle" : 24072,
  "entered link" : 3321356,
  "PersonEntersVehicle" : 24072,
  "vehicle leaves traffic" : 23906,
  "left link" : 3321356
}
2024-02-12T21:13:50,059  INFO IOUtils:224 Resolved /Users/mickyfitz/gelato-data/londinium/Londinium/outputs/output_legs.csv.gz to /Users/mickyfitz/gelato-data/londinium/Londinium/outputs/output_legs.csv.gz
2024-02-12T21:13:50,060  INFO IOUtils:224 Resolved /Users/mickyfitz/gelato-data/londinium/Londinium/outputs/output_trips.csv.gz to /Users/mickyfitz/gelato-data/londinium/Londinium/outputs/output_trips.csv.gz
2024-02-12T21:13:50,270  INFO TablesawKpiCalculator:366 Creating Network Link Tables
2024-02-12T21:13:50,473  INFO TablesawKpiCalculator:420 Creating Transit Tables
...