- complete signature to be `run`
- fix test
- orangecontrib: make inheritance to `Registered` instead of `OWEwoksWidget`
Because `OWEwoksWidget` enforce to use the defined ewokstaskclass which is not something we want for now (avoid task associated with gui, processes on threads...)

[converter oarnge table to XasObject]: fix issue with shape. Was probably not handling spectra with nelements.

- for now tests fails with larch but this come from larch (issue at the workfonw parametrization)

- program_name, program_version and definition are static functions

- rename `process` to `run` and
- replace output.var_namevar.value by outputs.var_name and input.var_namevar.value by inputs.var_name
- _INPUT_NAMES and _OUTPUT_NAMES where missing (larch processes...)

- one for pymca example
- one for larch example

update value from list to set