Add maximum and custom polling duration to DurableHttpRequest

[bachuv]

This issue is pulled from a comment made in the "Allow custom polling behavior in CallHttpAsync() for long-running endpoints" issue.

The comments say:
"Second, it would be nice to be able to specify an overall maximum polling duration, after which it could throw a time out exception.

Third, from my experiments it seems that the original HTTP request will time out in just under 90 seconds. It would be nice to be able to control that timeout duration with another property on DurableHttpRequest."

Here are some solutions to this issue:
An additional property (e.g. maximumPollingDuration) can be added to DurableHttpRequest to keep track of an overall maximum polling duration.

An additional property (e.g. timeOutDuration) can be added to DurableHttpRequest to specify if there is a custom timeout duration for the original HTTP request.