Create SocketExecutor that allows special options by default

[jentfoo]

For example if you wanted to use HttpClient with tcp no delay, you would have a hard time. This would allow you to wrap a SocketExecutor so that you can have these options applied by default as connections are established.

[lwahlmeier]

do you want this for the 4.x release?

[jentfoo]

Not needed for any specific urgency. Mostly trying to record ideas. I might PR this later, but did not want the idea to be lost.

[lwahlmeier]

Would it make more since to put it in the Server class? I could see 1 SE have multiple servers that might need different things set.

[lwahlmeier]

nvm I guess it might need to be both since all clients are not made from Servers.