Enable ILogger to be used for sending logs to clients

[stephentoub]

No description provided.

[Redth]

I started looking at this. I'm not sure how exactly we'd want it to work, but I was thinking of basically creating McpLoggerProvider and McpLogger which could have the IMcpServer injected so it could send a logging notification message if the logging level requested/set by the client is suitable.

I can send a draft PR with some ideas I was playing with.

[stephentoub]

@Redth , thanks. I actually have it implemented, but hit a few snags for things to be addressed first. Please hold off on this one, but once I land a few other changes first I can send you what I have if you want to build off it / finish it.

[Redth]

I made a draft PR anyway since I had the code basically done that's up there now after playing a bit today. Totally fine if you want to just close it in favour of your own implementation, but thought since I had it already, was worth sharing.