Move the grid subsetting out of _GridReaderNetCDF to a new function and add a method to Domain objects to be able to subset them in space.
Move the grid subsetting out of _GridReaderNetCDF to a new function and add a method to Domain objects to be able to subset them in space.

Replace the removed _GridReaderNetCDF code with a call to the new function to maintain functionality.

pwcazenave/PyFVCOM