Add support for NetCDF

[MartinPontius]

Is your feature request related to a problem? Please describe. I would like to use the library to create NetCDF coverage stores and layers, e.g. with the create_coveragestore method. At the moment this is not possible because the allowed_types list doesn't contain this type.

Describe the solution you'd like After adding 'NetCDF' to the allowed_types list, the create_coveragestore method works with NetCDF files. No other changes were necessary. However, I haven't tested all other functionalities/methods, so there might be more changes necessary for a full support.

Describe alternatives you've considered

Additional context In order to use this the Geoserver NetCDF plugin(s) need to be installed.

[jougisljs]

GeoServer 2.20.3 for Windows , Python 3.10.2 Please help me , I try to use the code : BUT ##################### cat.create_coveragestore('boa2021031', workspace='cite', type='NetCDF', contet_type='text/xml', source_name='boa202103', path=r'file:\test\BOA_Argo_2021_03.nc', layer_name='temp', create_layer=True) #####################

Traceback (most recent call last): File "D:\Python\geoapi\test3.py", line 8, in reslut = cat.create_coveragestore('boa2021031', workspace='cite', type='NetCDF', contet_type='text/xml', File "C:\Python310\lib\site-packages\geoserver\catalog.py", line 622, in create_coveragestore raise FailedRequestError('Failed to create coverage/layer {} for : {}, {}'.format(layer_name, name, geoserver.catalog.FailedRequestError: Failed to create coverage/layer temp for : boa2021031, 500