[SPIKE] Add Json Communication Protocol

[YuliiaKovalova]

the changes are made on the top of #11393
many files were touched due to changes in internal static INodePacket FactoryForDeserialization(ITranslatorBase translator)
ITranslator -> ITranslatorBase

Summary

This PR introduces a new JSON-based protocol for communication with dotnet.exe in MSBuild, improving the extensibility and maintainability of our inter-process communication. The implementation includes new interfaces for JSON translation and packet handling, along with the necessary infrastructure to support this protocol.

Changes

• Added new ITranslatable2 interface extending ITranslatable with JSON translation support
• Introduced INodePacket2 interface implementing ITranslatable2 for packet handling
• Implemented JSON protocol logic in new JsonTranslator class
• Updated TaskHostConfiguration and NodeBuildComplete to implement INodePacket2 (these are registered by OutOfProcTaskHostNode)
• Updated NodeEndpointOutOfProcBase to instantiate JsonTranslator for .NET host scenarios

Implementation Details

New Interfaces

public interface ITranslatable2 : ITranslatable
{
    void Translate(IJsonTranslator translator);
}

public interface INodePacket2 : ITranslatable2
{
}

Protocol Integration

The JSON protocol is instantiated in NodeEndpointOutOfProcBase when isNetHost is true, providing a clean separation between different communication protocols while maintaining backward compatibility.

Breaking Changes

None. This is a backward-compatible change that introduces new functionality without affecting existing behavior.

OPEN QUESTIONS

1. Versioning of models
2. Handshake adjustments- new field that indicates NET runtime OR hardcoded version?