Implement Azure SQL Database Recommendations Tool

[alzimmermsft]

This command will analyze the database and make index recommendations.

In an effort to make MCP tools more effective then just listing attributes we want to have them be useful to the developer.

This tool will look at a database and help the user apply db recommendations right from copilot.

The azmcp command will be azmcp sql db advise

[alzimmermsft]

Copied from Azure/azure-mcp#312

[joshfree]

@jongio could you pick up this SQL tool?

[jongio]

This is complex and will need to be done by the SQL team. They have it on their radar.

[joshfree]

@jongio could you please reassign to the correct owner who has it on their radar?

[joshfree]

@ericshape can you please follow up with @jongio on this?