Add example of implementing mcp on [sequentialthinking
server](https://github.com/modelcontextprotocol/servers/tree/main/src/sequentialthinking),
from [Example Servers](https://modelcontextprotocol.io/examples).
The PR includes dynamic and reflective problem-solving through
structured thinking processes.
The server provides tools for:
- starting thinking sessions
- adding sequential thoughts with step tracking
- revising previous thoughts
- creating alternative reasoning branches
- reviewing complete processes.
Also, features include thread-safe session management, adaptive planning
that adjusts step counts dynamically.
