LeakyBucketExecutionPolicy support for requests context

[clement911]

This is a non breaking change.
A new optional parameter getRequestContext can be supplied when constructing a LeakyBucketExecutionPolicy.

It serves to indicate whether the current context is Foreground or Background. The policy will prioritize foreground requests and run them first.

For example, if a user is waiting on the request (loading a page showing response results for example), you would want to prioritize this request over competing requests that might be running in the background (to run some jobs for example).
(In this scenario, you could for example inspect if there is an ambient HttpContext to determine whether the request is Foreground or Background)

[nozzlegear]

Published in v5.14.0 on nuget!