Fix broken imports related to the __init__.py changes for /ws endpoints

geomagio/algorithm/AverageAlgorithm.py

geomagio/algorithm/SpikesAlgorithm.py

geomagio/api/ws/data.py

geomagio/api/ws/filter.py

geomagio/processing/derived.py

geomagio/processing/factory.py

geomagio/processing/filters.py

geomagio/processing/flag_spikes.py

geomagio/processing/magproc.py

test/algorithm_test/AverageAlgorithm_test.py

test/edge_test/mseed_FDSN_test_clients.py