This PR adds a Nested MetaTypeSerializer class to the netbox_metatype_importer/api/nested_serializers.py file, a MetaTypeSerializer with a HyperlinkedIdentityField view for the MetaType model, updates the URL patterns for the MetaType Importer API, adds an API root view and two viewsets filtered by type for the MetaType Importer API, and adds model URLs for the MetaTypeDeviceType and MetaModuleType models with an app_name variable to the urls.py file for better organization.
This PR adds a Nested MetaTypeSerializer class to the netbox_metatype_importer/api/nested_serializers.py file, a MetaTypeSerializer with a HyperlinkedIdentityField view for the MetaType model, updates the URL patterns for the MetaType Importer API, adds an API root view and two viewsets filtered by type for the MetaType Importer API, and adds model URLs for the MetaTypeDeviceType and MetaModuleType models with an app_name variable to the urls.py file for better organization.