roocs / clisops / 20237253941
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Regrid updates and output fixes (#447)

### Changes
- Fixed `regrid.ipynb` 
- Removed need for `psymaps` / `psyplot` dependency
- `utils/common.py`:
  - Updated `require_module` to accept an interval of unsupported versions
- `utils/dataset_utils.py`:
  - Added option to `get_coord_by_type` to suppress warning about a main variable not being identifiable
- `utils/output_utils.py`:
  - Added functions `fix_netcdf_attrs_encoding` and '`_fix_str_encoding` to fix utf-8 encoding issues for global and variable attributes
- `ops/base_operation.py`:
  - Applying above fix to correct utf-8 encoding issues
- `core/regrid.py`:
  - `xarray` version warning correctly triggered for versions outside of
compatible version interval
  - `Grid.detect_extent`:
    + determins now also extent in latitude
    + using now average resolution in x and y direction, respectively, rather than the average resolution, to determine the extent in lon/lat direction
    + now returning `(lon_extent, lat_extent)` instead of just `lon_extent`
  - `Grid._grid_from_ds_adaptive`:
    + Added fix for regional grids that include either meridian or
antimeridian
    + Grids that are considered global in lon or lat direction, will now be defined within 0,360 / -180,180 or -90,90 degrees_east/north
  - `Grid.to_netcdf`:
    + Added fix for `ds.encoding['unlimited_dims']` not being updated by `xarray` when dropping all time-dependent variables to write out solely the horizontal grid
    + Applying above fix for utf-8 encoding issues
  - `Grid.extent_lat, Grid.extent_lon`: added new attributes
  - `Weights`:
    + Will now use `post_mask_source='domain_edge'` setting when remapping a regional grid via nearest neighbour method, to avoid extrapolation beyond the original source domain (xESMF PR yet to be approved and
merged)
- Tests:
  - Added / modified tests for code changes
  - Added some tests to increase coverage
  - Reverted skipping or xfailing tests that used to fail with `engine="h5netcdf"`... (continued)
Source Files on build 20237253941
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