Add configuration to replace accept_till_done command line option

[cmcfarlen]

This accept_till_done global variable controls whether or not ATS will continue to accept connections (in a loop) until accept returns an error (EAGAIN, or other). It is only changeable with a command line option and defaults to true. Under a very large amount of connects, this could cause a long event handler time and create a large backlog of events, causing timeouts and other issues.

It would be nice if the configuration could specify a number of additional accepts to process after a successful accept.

[github-actions[bot]]

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