THRIFT-5774: Add remote client's IP address to ServerContext in TServ…

[yoelyang]

THRIFT-5774: Add remote client's IP address to ServerContext in TServerEventHandler

Add the remote client's IP address to the ServerContext in TServerEventHandler when creating ServerContext.

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[ctubbsii]

I'm not familiar enough with the implementation to know if this is good or not, but I will say that I think this feature would be great to have. My project, Apache Accumulo, has had to do workarounds for years to get the client address, just to log it. It would be great to not have to do that anymore.

[Jens-G]

What happens if the transport is not socket based?

[yoelyang]

What happens if the transport is not socket based?

What happens if the transport is not socket based?

The new commit resolves this issue.