Rename model stepping functions

[Tortar]

This renames the functions for clarity:

• run_one_epoch! -> step!
• run_one_sim! -> run!
• run_n_sims -> ensemblerun

[AldoGl]

Thank you @Tortar, useful changes!

As far as I understand the changes you implemented are not only needed to improve clarity but also to make the APIs more coherent with Agents.jl, which itself adheres to the standard interface set in CommonSolve.jl.

Am I correct? It might be useful to elaborate a bit on these things here so that current and future users of BeforeIT.jl can understand the importance of this PR

[Tortar]

you are absolutely right! There could be even some more adherence to Agents.jl API by specializing the run! and ensemblerun functions there, but given the fact we don't currently use any tool present in Agents.jl at the moment, I don't think that it is sensible. To inherit from CommonSolve we risk less clashing though if we exported step! so I thought it was a good idea.

[Tortar]

Indeed another question is: do we want to export all these functions?

[AldoGl]

Indeed another question is: do we want to export all these functions?

On that I have mixed feelings. While I understand that it is common to export such functions, I like the idea of calling "BeforeIT" functions using the Bit.function notation

[Tortar]

yeah right, we could use https://docs.julialang.org/en/v1/base/base/#public so that to define the interface without exporting, will do in a follow-up pr