[Feature] Porting workflow: enhancing errors readability

[FlorianDeconinck]

A few small tweaks to improve the porting workflow:

• --no_report option: doesn't save logs or netcdf when failing translate test.
• Organize fields in error report netcdf by fail / pass and variable names (sorted).
• Logs moved to a details subfolder
• Order variable name in the resulting NetCDF when using serialbox-to-netcdf

⚠️ Update to xarray to make the new netcdf datatree possible ⚠️

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules
• New check tests, if applicable, are included

[FlorianDeconinck]

Update to xarray constraint for ci to be happy => NOAA-GFDL/pace#103