Add "Required dependency is disabled" diagnostic

[erri120]

No description provided.

[Sewer56]

Looks fine to me.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 72 lines in your changes are missing coverage. Please review.

Project coverage is 54.24%. Comparing base (52df463) to head (ac9053a).

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1098      +/-   ##
==========================================
- Coverage   54.35%   54.24%   -0.11%     
==========================================
  Files         671      671              
  Lines       22175    22231      +56     
  Branches     1708     1709       +1     
==========================================
+ Hits        12053    12059       +6     
- Misses       9724     9778      +54     
+ Partials      398      394       -4     

Flag	Coverage Δ
Linux	53.56% <0.00%> (-0.10%)	⬇️
Windows	53.50% <0.00%> (-0.10%)	⬇️
clean_environment_tests	54.23% <0.00%> (-0.12%)	⬇️
macOS	52.98% <0.00%> (-0.14%)	⬇️

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Files	Coverage Δ
...Games/NexusMods.Games.StardewValley/Diagnostics.cs	0.00% <0.00%> (ø)
...rdewValley/Emitters/DependencyDiagnosticEmitter.cs	0.00% <0.00%> (ø)

... and 3 files with indirect coverage changes