Add `nanite_community_models` as a dependency

[PinkShnack]

See AFM-analysis/nanite_community_models#7.

The nanite-community pypi package should be added as an optional dependency to nanite, as done for https://github.com/AFM-analysis/nanite_model_sneddon_spher (nanite[ACA]). The nanite-community package would replace ACA, as described in AFM-analysis/nanite_community_models#8.

Todo

• add nanite_model_sneddon_spher to nanite_community_models as in Add nanite_model_sneddon_spher as a dependency nanite_community_models#8.
• Add tests for these optional models
• Create related issue on pyjibe to load the models from the dependency source.