Add SelectionList concept

[matmair]

This PR adds the concept of SelectionLists - a way to define reusable choices for parameters (optionally controllable by plugins).

This is helpful to load and sync a list of choices into multiple instances. The usage of SelectionLists could be extended in the future.

Screenshots

CUI

PUI

ToDo:

• PUI unit testing
• locking SelectionList
• list deactivation logic

[netlify]

✅ Deploy Preview for inventree-web-pui-preview canceled.

Name	Link
🔨 Latest commit	aed0417
🔍 Latest deploy log	https://app.netlify.com/sites/inventree-web-pui-preview/deploys/67432c18d1172d00081a464e

[codecov]

Codecov Report

Attention: Patch coverage is 89.05109% with 30 lines in your changes missing coverage. Please review.

Project coverage is 84.63%. Comparing base (e2e0ecc) to head (aed0417).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/frontend/src/forms/selectionListFields.tsx	19.04%	17 Missing ⚠️
...rontend/src/components/forms/fields/TableField.tsx	33.33%	6 Missing ⚠️
src/frontend/src/components/render/ModelType.tsx	0.00%	2 Missing ⚠️
src/frontend/src/forms/PartForms.tsx	60.00%	1 Missing and 1 partial ⚠️
...rc/frontend/src/tables/part/SelectionListTable.tsx	90.00%	2 Missing ⚠️
...end/src/pages/Index/Settings/AdminCenter/Index.tsx	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8054      +/-   ##
==========================================
+ Coverage   84.61%   84.63%   +0.02%     
==========================================
  Files        1178     1183       +5     
  Lines       53641    53908     +267     
  Branches     2026     2031       +5     
==========================================
+ Hits        45387    45627     +240     
- Misses       7730     7775      +45     
+ Partials      524      506      -18     

Flag	Coverage Δ
backend	86.02% <100.00%> (+0.07%)	⬆️
migrations	42.66% <41.37%> (+0.04%)	⬆️
pui	69.16% <57.74%> (-0.13%)	⬇️

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[SchrodingersGat]

@matmair what's still to go on this one?