Susquehanna River needs truck and transport + stocking

[danStich]

Need to add capacity for truck and transport and stocking scenarios to the Susquehanna River model.

Would like for this to be generalized so it is applicable to all river systems future and current.

[danStich]

Should be able to do this by assigning the first X number of fish or X% of fish to a stocking group in inner-loop-sampling.R. Then, can set them aside in a separate df or list until after the ABM is run. Then, can add them back in. Need to figure out if they can be added in before populationProcessing, cohortProcessing, and additionalEggProcessing.

Going to add both the max % trucked and a max number trucked as user-defined parameters.

[danStich]

Adding this to #48 for inclusion in v2.0

[danStich]

Will address in #48 - closing here