Update `run-pipeline-iteratively.sh to create local dir structure with subset of data

[andrewphilipsmith]

The PR amends the run-pipeline-iteratively.sh script.

Using rsync, it creates a local directory structure, with only one year of data at a time. clim-recal can then be called on the local directory structure, without requiring the --index switch. The script loops through all year's, making a separate call to clim-recal for each year.