Resolve warnings and fix issues in Native AOT builds

[prozolic]

This PR resolve warnings and fix issues in Native AOT builds.

• Add manually UnconditionalSuppressMessageAttribute (suppressing the IL3* and IL2* warnings)
• Add DynamicallyAccessedMembers to EnumFormatter
• AddRuntimeFeature.IsDynamicCodeCompiled to some reflections
• Generates Formatter for the inherited collection interface.

[Copilot]

Pull request overview

This PR resolves warnings and fixes issues for Native AOT compilation by adding proper attributes and runtime checks to support both JIT and AOT scenarios.

Changes:

• Added UnconditionalSuppressMessage attributes to suppress IL2* and IL3* AOT analysis warnings where reflection is acceptable
• Added DynamicallyAccessedMembers annotations to types requiring reflection support
• Added RuntimeFeature.IsDynamicCodeCompiled guards to prevent runtime code generation in AOT scenarios
• Enhanced the generator to create formatters for inherited collection interfaces (ILookup, IGrouping)
• Made nullable annotation improvements and refactored collection type metadata organization

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tests/CsToml.Extensions.Configuration.Tests/TypeDeclarations.cs	Made Integers property nullable to match actual usage
src/CsToml/Formatter/TypeFormatter.cs	Added IL2057 suppression for Type.GetType reflection usage
src/CsToml/Formatter/Resolver/TomlSerializedObjectFormatterResolver.cs	Added IL2090 suppression for ITomlSerializedObjectRegister invocation
src/CsToml/Formatter/Resolver/BuiltinFormatterResolver.cs	Added IL3050 suppressions and RuntimeFeature checks to prevent dynamic code generation in AOT
src/CsToml/Formatter/EnumFormatter.cs	Added DynamicallyAccessedMembers annotation for enum field reflection
src/CsToml.Generator/TypeMeta.cs	Enhanced type discovery to include public generic collection interfaces
src/CsToml.Generator/Generator.cs	Added null-forgiving operators after validated non-null checks
src/CsToml.Generator/FormatterTypeMetaData.cs	Reorganized collection types, moved FrozenSet to concrete types, added interface collection support
sandbox/ConsoleNativeAOT/Type.cs	Added TypeLinqInterface test class for ILookup and IGrouping formatters
sandbox/ConsoleNativeAOT/Program.cs	Added test code for TypeLinqInterface serialization
sandbox/ConsoleNativeAOT/ConsoleNativeAOT.csproj	Updated to .NET 10.0 and adjusted AOT properties

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