ilastik workflow and API allow multichannel inputs

See merge request !40

Sync up staging

See merge request !39

Release 2024.04.19

See merge request !37

# Conflicts:
#	model_server/base/accessors.py
#	model_server/base/models.py
#	model_server/base/roiset.py
#	model_server/extensions/ilastik/models.py
#	model_server/extensions/ilastik/router.py
#	model_server/extensions/ilastik/tests/test_ilastik.py
#	tests/test_accessors.py
#	tests/test_roiset.py

Enforce distinct ilastik object model workflows

See merge request !33

# Conflicts:
#	model_server/extensions/ilastik/models.py

Disabled generation of ilastik object model that receives segmentation masks from one that receives pixel probabilities; this was causing inaccurate results

Report expected class of model, not actual class of shell

See merge request !32

Changes for compatibility with jython script

See merge request !31

Accessor changes to support object classification

See merge request !30

Separate _put arguments for query and JSON-encoded body data in test client; test case showing pydantic model is required for list args