WIP: ✨ Is353/computational function services

[pcrespov]

What do these changes do?

Builds up on new concept of "function service" developed in PR #2756 and implements the possibility to have function services running in the computational backend.

Related issue/s

• S-D22.2 Meta-Modeling sensitivity analysis Y4M08 osparc-issues#353
• S-D22.3 Meta-Modeling uncertainty assessment Y4M10 osparc-issues#354
• ⚗️ MetaModeling backlog #2392
• ✨ Is353/api results table from meta-project sweep (⚠️ devops) #2851
• ✨ Is353/meta function nodes (⚠️ devops) #2756

How to test

• Covered by CI

Checklist

[codecov]

Codecov Report

Merging #2903 (3df45db) into master (7ae21de) will decrease coverage by 0.1%.
The diff coverage is 71.4%.

@@           Coverage Diff            @@
##           master   #2903     +/-   ##
========================================
- Coverage    79.0%   78.9%   -0.2%     
========================================
  Files         677     665     -12     
  Lines       28228   27576    -652     
  Branches     3282    3214     -68     
========================================
- Hits        22315   21764    -551     
+ Misses       5133    5071     -62     
+ Partials      780     741     -39     

Flag	Coverage Δ
integrationtests	64.1% <71.4%> (-1.7%)	⬇️
unittests	74.7% <71.4%> (+0.4%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...rector_v2/modules/comp_scheduler/base_scheduler.py	86.7% <ø> (ø)
...rector_v2/modules/comp_scheduler/dask_scheduler.py	89.6% <ø> (ø)
...simcore_service_director_v2/modules/dask_client.py	91.7% <ø> (ø)
...ector_v2/modules/comp_scheduler/background_task.py	83.3% <66.6%> (-8.4%)	⬇️
...ice_director_v2/modules/comp_scheduler/_factory.py	100.0% <100.0%> (ø)
...simcore_service_webserver/computation_subscribe.py	27.0% <0.0%> (-61.0%)	⬇️
.../simcore_service_webserver/computation_settings.py	55.5% <0.0%> (-44.5%)	⬇️
...erver/src/simcore_service_webserver/computation.py	75.0% <0.0%> (-25.0%)	⬇️
...webserver/computation_comp_tasks_listening_task.py	67.3% <0.0%> (-10.0%)	⬇️
... and 27 more

[pcrespov]

Will not use this approach. Replace instead by PR #2943