tracks using trackgraph api, fixed filtering

...ture/identification/african_easterly_waves/climatology.py

...re/identification/african_easterly_waves/configuration.py

...e/identification/african_easterly_waves/identification.py

...feature/identification/african_easterly_waves/plotting.py

enstools/feature/tracking/african_easterly_waves/tracking.py

...ools/feature/tracking/template_object_compare/tracking.py

enstools/feature/tracking/tracking.py

enstools/feature/util/graph.py