Creating new cache used full ds instead of reduced ds (#340)

* Creating new cache used full ds instead of reduced ds

Required to ensure that the cached function does not use data_vars that not explicitly required

* Format cache to please  codacy

* Better support for vertex grids

* remove option to store delr/delc as attrs

* remove option to store delr/delc as attrs

* update polygons_from_model_ds to to use new delr/delc datavars

* add delr and delc to datavars in ds_to_structured_grid

* remove delr/delc attr check in structured_da_to_ds

* get_recharge uses coords3d to determine first active layer

* add delr/delc to datavars for surface water functions

* formatting

* formatting

* remove coords that number from 0 to N (these are not listed in coords)

* remove delr and delc from datavars is vertexgrid

* do not check time attrs start and time_units

* do not check time coord attributes

* formatting

* skip delr/delc when writing files

* rename bathymetry tests

* comment still in dutch: bathymetry

* comment still in dutch: bathymetry

* use last delr to set extent

* use brackets (was failing for me without)

* Cache: Implemented inline suggestions made by David

---------

Co-authored-by: Davíd Brakenhoff <d.brakenhoff@artesia-water.nl>

docs/examples/02_surface_water.ipynb

@@ -490,7 +490,7 @@
     "xlim = ax.get_xlim()\n",
     "ylim = ax.get_ylim()\n",
     "gwf.modelgrid.plot(ax=ax)\n",
-    "ax.set_xlim(xlim[0], xlim[0] + ds.delr * 1.1)\n",
+    "ax.set_xlim(xlim[0], xlim[0] + ds.delr[-1] * 1.1)\n",
     "ax.set_ylim(ylim)\n",
     "ax.set_title(f\"Surface water shapes in cell: {cid}\")"
    ]
@@ -788,6 +788,14 @@
     "cbar = fig.colorbar(qm, shrink=1.0)\n",
     "cbar.set_label(\"head [m NAP]\")"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "1cbc42bf",
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {

docs/examples/cache_example.py

@@ -3,7 +3,7 @@
 import xarray as xr
 
 
-@nlmod.cache.cache_netcdf
+@nlmod.cache.cache_netcdf()
 def func_to_create_a_dataset(number):
     """create a dataarray as an example for the caching method.