Spin up functions for met workflow

[bcow]

Linkages is going to need to do a spinup for the paleon runs (@raiho) Would it make sense to have either a spinup.LINKAGES function or a new section in met2model.LINKAGES such that

met2model.LINKAGES(..., spinup=1000){
     create met files
     spinup{
          randomly select number of met years for spinup
      }
     return run met file(s) with spinup 
}

[mdietze]

I think it would be bad to put it in met2model since there's now way to control that variable from the met workflow. spinup.LINKAGES would likewise not be called by workflow.R. Putting it in write.configs would be better since spinup could be passed as a model-specific additional optional variable within the model portion of settings. Ultimately, it would be good to have a model-agnostic way of doing spin up, but for the time being this keep Ann moving forward as we head into the AGU rush

[github-actions[bot]]

This issue is stale because it has been open 365 days with no activity.

[infotroph]

see also #347