Add internationalized documentation comments to C++ interfaces

[konard]

🎯 Summary

This PR addresses issue #12 by adding internationalized (bilingual English/Russian) documentation comments to C++ interface files that were missing them.

📋 Issue Reference

Fixes #12

🔍 Analysis

After analyzing the codebase, I found that:

• ✅ C# interfaces already had complete bilingual documentation with English and Russian comments
• ❌ C++ interfaces were missing documentation comments entirely

🚀 Implementation Details

Added comprehensive bilingual XML documentation comments to all core C++ interface files:

• IFactory.h - Factory pattern interface for creating instances
• IProvider[TProvided].h - Provider interface for objects/values
• IProvider[TProvided, TArgument].h - Provider interface requiring arguments
• ISetter[TValue].h - Setter interface for simple value setting
• ISetter[TValue, TArgument].h - Setter interface requiring arguments
• ICounter[TResult].h - Counter interface for simple counting
• ICounter[TResult, TArgument].h - Counter interface requiring arguments
• ICriterionMatcher.h - Criterion matching interface
• IProperty.h - Property operator interface
• IProperties.h - Properties operator interface

📝 Documentation Format

Each interface now includes:

• <summary> tags with English and Russian descriptions
• <typeparam> tags for generic type parameters
• <param> tags for method parameters
• <returns> tags for return value descriptions

All documentation follows the exact same format and style as the existing C# interfaces to maintain consistency across the codebase.

✅ Changes Made

• 10 C++ header files updated
• 216 lines of documentation added
• Consistent bilingual format maintained
• Zero breaking changes to existing code

The C++ interfaces now have complete documentation parity with their C# counterparts, making the codebase fully internationalized for both English and Russian speakers.

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