[mcp] integrate tool calls into the embedded MCP server to deliver version and support range information

[martinlippert]

The embedded MCP server should allow the AI client to get information about Spring project version and support ranges.

The "original" MCP server for this is here:
https://github.com/martinlippert/spring-io-api-mcp

Due to the fact that the language server already fetches this information from the spring.io API, the embedded MCP server can probably use that already fetched information instead of calling the spring.io API every time.

[martinlippert]

Decided to not directly embed the mentioned full MCP server for the https://api.spring.io information, but a more dedicated and focused version that delivers information about the latest version of a spring project as a starting point.

Other function calls have been added as well, including:

• get project information (list of projects, libraries/dependencies of a project, spring boot version of a project)
• information about defined stereotypes as well as a list of components from the project together with their stereotypes