Parameter type validation

[soininen]

This PR implements parameter type validation in Database editor. Parameter definition table now has a new column, "valid types" which lists accepted value types for the parameter. If any types are specified in the column, both values and default values are validated against the types. Invalid types are marked by an exclamation icon and a tool tip provides more information.

As much of the validation as possible has been offloaded to a worker process so the validation should not affect DB editor's responsiveness too much.

spinedb_api side PR: spine-tools/Spine-Database-API#439

Implements #2791

Checklist before merging

• Documentation is up-to-date
• Release notes have been updated
• Unit tests have been added/updated accordingly
• Code has been formatted by black & isort
• Unit tests pass

[codecov]

Codecov Report

Attention: Patch coverage is 77.32181% with 105 lines in your changes missing coverage. Please review.

Project coverage is 66.96%. Comparing base (1b51b6a) to head (5567426).

Files	Patch %	Lines
...etoolbox/spine_db_editor/widgets/custom_editors.py	67.10%	22 Missing and 3 partials ⚠️
...oolbox/spine_db_editor/widgets/custom_delegates.py	45.00%	22 Missing ⚠️
spinetoolbox/parameter_type_validation.py	77.77%	16 Missing and 2 partials ⚠️
...olbox/spine_db_editor/mvcmodels/compound_models.py	50.00%	12 Missing and 4 partials ⚠️
spinetoolbox/spine_db_manager.py	76.11%	15 Missing and 1 partial ⚠️
...toolbox/spine_db_editor/mvcmodels/single_models.py	88.33%	5 Missing and 2 partials ⚠️
...oolbox/spine_db_editor/ui/parameter_type_editor.py	98.98%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2912      +/-   ##
==========================================
+ Coverage   66.90%   66.96%   +0.05%     
==========================================
  Files         187      189       +2     
  Lines       36464    36878     +414     
  Branches     6241     6312      +71     
==========================================
+ Hits        24398    24695     +297     
- Misses      10764    10871     +107     
- Partials     1302     1312      +10     

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