Ramp Time in Side Bar

I'd like ramp time to be included whenever the calculation mode combines hit dps with poison/impale dps. It's important context for the final dps number that players can miss when talking about X bajillion viper strike dps.

If the box is getting too crowded then maybe replace the "total damage per poison" stat, which doesn't seem very relevant when dps is concerned.

ramp time for poison dps = poison duration
ramp time for impale dps = max number of impales / attacks per second

Originally posted by @Sectoidfodder in https://github.com/PathOfBuildingCommunity/PathOfBuilding/pull/158#issuecomment-594084168

Non sono indicati file o test. Inizia individuando la visualizzazione della modalità di calcolo nella barra laterale e le statistiche esistenti poison, impale e total-damage-per-poison; confronta le formule di ramp time richieste con i calcoli attuali. Il lavoro è completato quando le modalità DPS di hit combinato più poison/impale mostrano la ramp time senza sovraccaricare la barra laterale.