Move lengthy remarks for DynamicMethod to conceptual docs repo

[gewarren]

Move remarks > 15 lines to conceptual docs repo.

Contributes to dotnet/dotnet-api-docs#10722.

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Internal previews

📄 File	🔗 Preview link
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-createdelegate.md	System.Reflection.Emit.DynamicMethod.CreateDelegate methods
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-ctor.md	System.Reflection.Emit.DynamicMethod constructors
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-getilgenerator.md	System.Reflection.Emit.DynamicMethod.GetILGenerator methods
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-invoke.md	docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-invoke
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-issecuritycritical.md	System.Reflection.Emit.DynamicMethod.IsSecurity* properties
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod.md	System.Reflection.Emit.DynamicMethod class
docs/fundamentals/toc.yml	docs/fundamentals/toc

[Copilot]

Pull request overview

Moves long API reference remarks for System.Reflection.Emit.DynamicMethod into this conceptual docs repo to keep API docs concise while preserving detailed guidance.

Changes:

• Adds new “Supplemental API remarks” pages for DynamicMethod members (constructors, CreateDelegate, GetILGenerator, Invoke, and IsSecurity*).
• Updates docs/fundamentals/toc.yml to nest the new pages under the existing DynamicMethod entry.
• Adds/updates snippet projects and sources referenced by the new conceptual pages.

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
docs/fundamentals/toc.yml	Nests DynamicMethod supplemental remark pages under the Reflection Emit TOC section.
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod.md	Keeps type-level supplemental remarks, and updates xref formatting.
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-createdelegate.md	New supplemental remarks page for CreateDelegate overloads and examples.
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-ctor.md	New supplemental remarks page for constructors and security/visibility behavior.
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-getilgenerator.md	New supplemental remarks page for GetILGenerator overloads and examples.
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-invoke.md	New supplemental remarks page for Invoke, including behavior notes and examples.
docs/fundamentals/runtime-libraries/system-reflection-emit-dynamicmethod-issecuritycritical.md	New supplemental remarks page describing IsSecurity* transparency properties.
docs/fundamentals/runtime-libraries/includes/context.md	Changes the shared “supplementary remarks” banner to a NOTE block.
docs/fundamentals/runtime-libraries/snippets/System.Reflection.Emit/DynamicMethod/Overview/vb/source.vb	Adds VB overview snippet used by the new conceptual pages.
docs/fundamentals/runtime-libraries/snippets/System.Reflection.Emit/DynamicMethod/Overview/vb/Project.vbproj	Adds VB project file to build the overview snippet.
docs/fundamentals/runtime-libraries/snippets/System.Reflection.Emit/DynamicMethod/Overview/csharp/source.cs	Adds C# overview snippet used by the new conceptual pages.
docs/fundamentals/runtime-libraries/snippets/System.Reflection.Emit/DynamicMethod/Overview/csharp/Project.csproj	Adds C# project file to build the overview snippet.
docs/fundamentals/runtime-libraries/snippets/System.Reflection.Emit/DynamicMethod/.ctor/vb/source1.vb	Adds VB constructor snippet used by the constructors/CreateDelegate pages.
docs/fundamentals/runtime-libraries/snippets/System.Reflection.Emit/DynamicMethod/.ctor/vb/source.vb	Adds VB snippet demonstrating owner/type association and closed delegates.
docs/fundamentals/runtime-libraries/snippets/System.Reflection.Emit/DynamicMethod/.ctor/vb/Project.vbproj	Adds VB project file to build the .ctor snippets.
docs/fundamentals/runtime-libraries/snippets/System.Reflection.Emit/DynamicMethod/.ctor/csharp/source1.cs	Adds C# constructor snippet used by the constructors/CreateDelegate pages.
docs/fundamentals/runtime-libraries/snippets/System.Reflection.Emit/DynamicMethod/.ctor/csharp/source.cs	Adds C# snippet demonstrating owner/type association and closed delegates.
docs/fundamentals/runtime-libraries/snippets/System.Reflection.Emit/DynamicMethod/.ctor/csharp/Project.csproj	Adds C# project file to build the .ctor snippets.

[meaghanlewis]

These changes LGTM.