Add ToolGroups Server

[scottslewis]

Description

Adds support for using Java interfaces or classes as 'tool groups'...i.e. semantically related sets of annotated methods aka tools. Given a service instance and the interface class, tool specifications can be generated at runtime through reflection, and added/removed to a running MCP Server. Example servers provided.

How Has This Been Tested?

MCP Test Client is present in repository.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• [ X] New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• [X ] I have read the MCP Protocol Documentation
• [X ] My changes follows MCP security best practices
• [X ] I have updated the server's README accordingly
• [ X] I have tested this with an LLM client
• [ X] My code follows the repository's style guidelines
• [ X] New and existing tests pass locally
• [X ] I have added appropriate error handling
• [X ] I have documented all environment variables and configuration options

Additional context

[domdomegg]

Interesting stuff!

Just in case you weren't following it already, there's also interesting discussion at the protocol level here that might be useful to follow: modelcontextprotocol/modelcontextprotocol#1300