Add asset validation features (analyzers, editor)

[jonisavo]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 89.01734% with 57 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.65%. Comparing base (16c80e5) to head (c937c07).
⚠️ Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
Assets/UIComponents/Editor/ConventionValidator.cs	86.47%	33 Missing ⚠️
...nalyzers/UIComponentIdenticalStylesheetAnalyzer.cs	81.66%	3 Missing and 8 partials ⚠️
...yn.Analyzers/AssetRootAndPrefixConflictAnalyzer.cs	90.00%	2 Missing and 4 partials ⚠️
...ts/UIComponents/Editor/AssetDatabaseAssetSource.cs	93.24%	5 Missing ⚠️
...ponents.Roslyn.Analyzers/EmptyAssetPathAnalyzer.cs	97.53%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #126      +/-   ##
==========================================
+ Coverage   92.53%   94.65%   +2.11%     
==========================================
  Files          62       64       +2     
  Lines        2117     2562     +445     
  Branches      286      320      +34     
==========================================
+ Hits         1959     2425     +466     
+ Misses        141      106      -35     
- Partials       17       31      +14     

Flag	Coverage Δ
automated	94.65% <89.01%> (+2.11%)	⬆️

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