chore: repo cleanup and code quality improvements

- Remove global.json (SDK pinning unnecessary)

- Remove nuget.config, move MyGet source to .csproj RestoreAdditionalProjectSources

- Gitignore ndepend/ entirely, move badges to docs/img/

- Update README.md and docs/ndepend.md badge paths

- Add NDepend project property to QuanTAlib.slnx

- Expand .editorconfig ReSharper/diagnostic suppressions

- Use ArgumentOutOfRangeException instead of ArgumentException

- Use discard _ for unused event sender parameters

- Remove quantalib.code-workspace and sonar-suppressions.json

- Add filter signature SVGs

lib/volatility/vr/Vr.cs

@@ -227,8 +227,6 @@ public sealed class Vr : AbstractBase
 
         return new TSeries(t, v);
     }
-
-    /// <inheritdoc/>
     public override TSeries Update(TSeries source)
     {
         // For TSeries (price-only), create synthetic bars
@@ -248,8 +246,6 @@ public sealed class Vr : AbstractBase
 
         return new TSeries(t, v);
     }
-
-    /// <inheritdoc/>
     public override void Prime(ReadOnlySpan<double> source, TimeSpan? step = null)
     {
         for (int i = 0; i < source.Length; i++)
@@ -257,8 +253,6 @@ public sealed class Vr : AbstractBase
             Update(new TValue(DateTime.UtcNow, source[i]), isNew: true);
         }
     }
-
-    /// <inheritdoc/>
     public override void Reset()
     {
         _s = new State(0, 1.0, 0, 0, 0, false);