Added return_esmpy_regrid_operator kwargs to field/regrids and field/regridc, so that users wanting to make use of the functionality offered by it can do so via regrids and regridc, without having to call the regrid worker function directly.
This is possibly my 2nd ever PR, so if I've done something stupid, please forgive me... xD
For example, see #767
Fixes #766
Added return_esmpy_regrid_operator kwargs to field/regrids and field/regridc, so that users wanting to make use of the functionality offered by it can do so via regrids and regridc, without having to call the regrid worker function directly.
This is possibly my 2nd ever PR, so if I've done something stupid, please forgive me... xD For example, see #767