Add azmcp-adx-*

[danield137]

Add set of commands for Azure Adx* support. Since there is already an open-source repo https://github.com/pab1it0/adx-mcp-server, we can follow in its footsteps.

A good starting point, in my opinion, would be:

• Execute KQL queries against Azure Data Explorer
• List Databases in an ADX cluster
• List Tables in an ADX database
• Sample data (take 1)

Per my testing, most agents can write KQL decently enough so that this would be useable with this small set of commands.